Move re_video from crates/store to crates/utils (#8260)

### Related
* Closes #7842 

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Include links to any related issues/PRs in a bulleted list, for example:
* Closes #1234
* Part of #1337
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### What
Simply migrates `re_video` from `store` to `utils`, and accordingly
updates `Cargo.toml`.

#### Passes:
- `cargo test --all-targets --all-features`
- `pixi run -e cpp cpp-test`

#### Fails:
- `pixi run py-test`
```
rerun_py/rerun_sdk/rerun/datatypes/angle.py:12: in <module>
    import pyarrow as pa
.pixi/envs/py/lib/python3.11/site-packages/pyarrow/__init__.py:65: in <module>
    import pyarrow.lib as _lib
E   ImportError: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.32' not found (required by /home/abhishek/Code/rerun/.pixi/envs/py/lib/python3.11/site-packages/pyarrow/../../../libarrow.so.1800)
```
I'm on Ubuntu 22.04 and have got ROS2 which may be causing conflicts as
I see `.pixi/envs/py/lib/python3.11` mixed up with
`/opt/ros/humble/lib/python3.10`:
<details>
  <summary>Console Logs</summary>

  ```
$ pixi run py-test
✨ Pixi task (py-build in py): pixi run -e py py-build-common
✨ Pixi task (rerun-build in py): cargo build --package rerun-cli
--no-default-features --features map_view,nasm,native_viewer
    Finished `dev` profile [optimized + debuginfo] target(s) in 0.34s

✨ Pixi task (py-build-common in py): PIP_REQUIRE_VIRTUALENV=0
RERUN_ALLOW_MISSING_BIN=1 maturin develop --manifest-path
rerun_py/Cargo.toml --extras=tests
🍹 Building a mixed python/rust project
🔗 Found pyo3 bindings with abi3 support for Python ≥ 3.8
🐍 Not using a specific python interpreter
📡 Using build options locked, config from pyproject.toml
Ignoring rerun-notebook: markers 'extra == "notebook"' don't match your
environment
Requirement already satisfied: attrs>=23.1.0 in
./.pixi/envs/py/lib/python3.11/site-packages (24.2.0)
Requirement already satisfied: numpy<2,>=1.23 in
./.pixi/envs/py/lib/python3.11/site-packages (1.26.4)
Requirement already satisfied: pillow>=8.0.0 in
./.pixi/envs/py/lib/python3.11/site-packages (10.0.0)
Requirement already satisfied: pyarrow>=14.0.2 in
./.pixi/envs/py/lib/python3.11/site-packages (18.0.0)
Requirement already satisfied: typing-extensions>=4.5 in
./.pixi/envs/py/lib/python3.11/site-packages (4.12.2)
Requirement already satisfied: pytest==7.1.2 in
./.pixi/envs/py/lib/python3.11/site-packages (7.1.2)
Requirement already satisfied: iniconfig in
./.pixi/envs/py/lib/python3.11/site-packages (from pytest==7.1.2)
(2.0.0)
Requirement already satisfied: packaging in
./.pixi/envs/py/lib/python3.11/site-packages (from pytest==7.1.2) (24.1)
Requirement already satisfied: pluggy<2.0,>=0.12 in
./.pixi/envs/py/lib/python3.11/site-packages (from pytest==7.1.2)
(1.5.0)
Requirement already satisfied: py>=1.8.2 in
./.pixi/envs/py/lib/python3.11/site-packages (from pytest==7.1.2)
(1.11.0)
Requirement already satisfied: tomli>=1.0.0 in
./.pixi/envs/py/lib/python3.11/site-packages (from pytest==7.1.2)
(2.0.2)
    Finished `dev` profile [optimized + debuginfo] target(s) in 0.24s
📦 Built wheel for abi3 Python ≥ 3.8 to
/tmp/.tmpBFVm0m/rerun_sdk-0.21.0a1+dev-cp38-abi3-linux_x86_64.whl
✏️  Setting installed package as editable
🛠 Installed rerun-sdk-0.21.0a1+dev

✨ Pixi task (py-test in py): python -m pytest -vv rerun_py/tests/unit
=======================================================================
test session starts
=======================================================================
platform linux -- Python 3.11.10, pytest-7.1.2, pluggy-1.5.0 --
/home/abhishek/Code/rerun/.pixi/envs/py/bin/python
cachedir: .pytest_cache
benchmark: 4.0.0 (defaults: timer=time.perf_counter disable_gc=False
min_rounds=5 min_time=0.000005 max_time=1.0 calibration_precision=10
warmup=False warmup_iterations=100000)
rootdir: /home/abhishek/Code/rerun/rerun_py, configfile: pyproject.toml
plugins: ament-xmllint-0.12.11, ament-lint-0.12.11,
ament-copyright-0.12.11, launch-pytest-1.0.6, launch-testing-ros-0.19.7,
ament-flake8-0.12.11, ament-pep257-0.12.11, launch-testing-1.0.6,
benchmark-4.0.0, anyio-4.6.2.post1
collected 0 items / 1 error


=============================================================================
ERRORS
==============================================================================
_____________________________________________________________ ERROR
collecting tests/unit/__init__.py
_____________________________________________________________
.pixi/envs/py/lib/python3.11/site-packages/pluggy/_hooks.py:513: in
__call__
return self._hookexec(self.name, self._hookimpls.copy(), kwargs,
firstresult)
.pixi/envs/py/lib/python3.11/site-packages/pluggy/_manager.py:120: in
_hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)
.pixi/envs/py/lib/python3.11/site-packages/_pytest/python.py:206: in
pytest_collect_file
    module: Module = ihook.pytest_pycollect_makemodule(
.pixi/envs/py/lib/python3.11/site-packages/_pytest/config/compat.py:67:
in fixed_hook
    return hook(**kw)
.pixi/envs/py/lib/python3.11/site-packages/pluggy/_hooks.py:513: in
__call__
return self._hookexec(self.name, self._hookimpls.copy(), kwargs,
firstresult)
.pixi/envs/py/lib/python3.11/site-packages/pluggy/_manager.py:120: in
_hookexec
    return self._inner_hookexec(hook_name, methods, kwargs, firstresult)

/opt/ros/humble/lib/python3.10/site-packages/launch_testing/pytest/hooks.py:193:
in pytest_pycollect_makemodule
    entrypoint = find_launch_test_entrypoint(path)

/opt/ros/humble/lib/python3.10/site-packages/launch_testing/pytest/hooks.py:183:
in find_launch_test_entrypoint
    module = import_path(path, root=None)
.pixi/envs/py/lib/python3.11/site-packages/_pytest/pathlib.py:533: in
import_path
    importlib.import_module(module_name)
.pixi/envs/py/lib/python3.11/importlib/__init__.py:126: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
<frozen importlib._bootstrap>:1204: in _gcd_import
    ???
<frozen importlib._bootstrap>:1176: in _find_and_load
    ???
<frozen importlib._bootstrap>:1147: in _find_and_load_unlocked
    ???
<frozen importlib._bootstrap>:690: in _load_unlocked
    ???

.pixi/envs/py/lib/python3.11/site-packages/_pytest/assertion/rewrite.py:168:
in exec_module
    exec(co, module.__dict__)
rerun_py/tests/unit/test_annotation_context.py:6: in <module>
    import rerun as rr
rerun_py/rerun/__init__.py:36: in <module>
    sys.modules["rerun"] = __import__("rerun")
rerun_py/rerun_sdk/rerun/__init__.py:28: in <module>
    from . import (
rerun_py/rerun_sdk/rerun/blueprint/__init__.py:7: in <module>
from ..datatypes import ( # Re-export time range types for better
discoverability.
rerun_py/rerun_sdk/rerun/datatypes/__init__.py:5: in <module>
    from .angle import Angle, AngleArrayLike, AngleBatch, AngleLike
rerun_py/rerun_sdk/rerun/datatypes/angle.py:12: in <module>
    import pyarrow as pa
.pixi/envs/py/lib/python3.11/site-packages/pyarrow/__init__.py:65: in
<module>
    import pyarrow.lib as _lib
E ImportError: /usr/lib/x86_64-linux-gnu/libstdc++.so.6: version
`GLIBCXX_3.4.32' not found (required by
/home/abhishek/Code/rerun/.pixi/envs/py/lib/python3.11/site-packages/pyarrow/../../../libarrow.so.1800)

-------------------------------------------------------------------------
Captured stderr
-------------------------------------------------------------------------
DEV ENVIRONMENT DETECTED! Re-importing rerun from:
/home/abhishek/Code/rerun/rerun_py/rerun_sdk
=====================================================================
short test summary info
=====================================================================
ERROR rerun_py/tests/unit/__init__.py - ImportError:
/usr/lib/x86_64-linux-gnu/libstdc++.so.6: version `GLIBCXX_3.4.32' not
found (required by /home/abhishek/Co...
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Interrupted: 1 error during collection
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

========================================================================
1 error in 0.20s
=========================================================================
  ```
</details>

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Cargo.toml

@@ -63,7 +63,6 @@ re_sdk_comms = { path = "crates/store/re_sdk_comms", version = "=0.21.0-alpha.1"
 re_types = { path = "crates/store/re_types", version = "=0.21.0-alpha.1", default-features = false }
 re_types_blueprint = { path = "crates/store/re_types_blueprint", version = "=0.21.0-alpha.1", default-features = false }
 re_types_core = { path = "crates/store/re_types_core", version = "=0.21.0-alpha.1", default-features = false }
-re_video = { path = "crates/store/re_video", version = "=0.21.0-alpha.1", default-features = false }
 re_ws_comms = { path = "crates/store/re_ws_comms", version = "=0.21.0-alpha.1", default-features = false }
 
 # crates/top:
@@ -85,6 +84,7 @@ re_smart_channel = { path = "crates/utils/re_smart_channel", version = "=0.21.0-
 re_string_interner = { path = "crates/utils/re_string_interner", version = "=0.21.0-alpha.1", default-features = false }
 re_tracing = { path = "crates/utils/re_tracing", version = "=0.21.0-alpha.1", default-features = false }
 re_tuid = { path = "crates/utils/re_tuid", version = "=0.21.0-alpha.1", default-features = false }
+re_video = { path = "crates/utils/re_video", version = "=0.21.0-alpha.1", default-features = false }
 
 # crates/viewer:
 re_blueprint_tree = { path = "crates/viewer/re_blueprint_tree", version = "=0.21.0-alpha.1", default-features = false }