Automatically derive tuple_struct attr and trivial From impls whe…

…re possible (#2772)

**Commit by commit!**

What the title says.

Fixes #2675
Fixes #2771 

### What

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested [demo.rerun.io](https://demo.rerun.io/pr/2772) (if
applicable)

- [PR Build Summary](https://build.rerun.io/pr/2772)
- [Docs
preview](https://rerun.io/preview/pr%3Acmc%2Fnicer_components_rust/docs)
- [Examples
preview](https://rerun.io/preview/pr%3Acmc%2Fnicer_components_rust/examples)

crates/re_space_view_spatial/src/parts/points2d.rs

@@ -58,7 +58,7 @@ impl Points2DPart {
                     (point, Some(label)) => Some(UiLabel {
                         text: label,
                         color: *color,
-                        target: UiLabelTarget::Point2D(egui::pos2(point.xy.x, point.xy.y)),
+                        target: UiLabelTarget::Point2D(egui::pos2(point.x(), point.y())),
                         labeled_instance: *labeled_instance,
                     }),
                     _ => None,

crates/re_types/definitions/rerun/components/class_id.fbs

@@ -16,7 +16,6 @@ struct ClassId (
   "attr.python.array_aliases": "int, npt.NDArray[np.uint8], npt.NDArray[np.uint16], npt.NDArray[np.uint32], npt.NDArray[np.uint64]",
   "attr.rerun.legacy_fqname": "rerun.class_id",
   "attr.rust.derive": "Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash",
-  "attr.rust.tuple_struct",
   order: 100
 ) {
   id: ushort (order: 100);

crates/re_types/definitions/rerun/components/color.fbs

@@ -20,7 +20,6 @@ struct Color (
   "attr.rerun.legacy_fqname": "rerun.colorrgba",
   "attr.rust.derive": "Default, Copy, PartialEq, Eq, PartialOrd, Ord, bytemuck::Pod, bytemuck::Zeroable",
   "attr.rust.repr": "transparent",
-  "attr.rust.tuple_struct",
   order: 100
 ) {
   rgba: uint (order: 100);

crates/re_types/definitions/rerun/components/draw_order.fbs

@@ -22,7 +22,6 @@ struct DrawOrder (
   "attr.rerun.legacy_fqname": "rerun.draw_order",
   "attr.rust.derive": "Copy",
   "attr.rust.repr": "transparent",
-  "attr.rust.tuple_struct",
   order: 100
 ) {
    value: float (order: 100);

crates/re_types/definitions/rerun/components/instance_key.fbs

@@ -14,7 +14,6 @@ struct InstanceKey (
   "attr.python.aliases": "int",
   "attr.python.array_aliases": "int, npt.NDArray[np.uint64]",
   "attr.rerun.legacy_fqname": "rerun.instance_key",
-  "attr.rust.tuple_struct",
   "attr.rust.derive": "Copy, Hash, PartialEq, Eq, PartialOrd, Ord",
   order: 100
 ) {

crates/re_types/definitions/rerun/components/keypoint_id.fbs

@@ -23,7 +23,6 @@ struct KeypointId (
   "attr.python.array_aliases": "float, npt.NDArray[np.uint8], npt.NDArray[np.uint16], npt.NDArray[np.uint32]",
   "attr.rerun.legacy_fqname": "rerun.keypoint_id",
   "attr.rust.derive": "Copy, Default, PartialEq, Eq, PartialOrd, Ord, Hash",
-  "attr.rust.tuple_struct",
   order: 200
 ) {
   id: ushort (order: 100);

crates/re_types/definitions/rerun/components/label.fbs

@@ -16,7 +16,6 @@ table Label (
   "attr.rerun.legacy_fqname": "rerun.label",
   "attr.rust.derive": "PartialEq, Eq, PartialOrd, Ord",
   "attr.rust.repr": "transparent",
-  "attr.rust.tuple_struct",
   order: 100
 ) {
   value: string (order: 100);

crates/re_types/definitions/rerun/components/point2d.fbs

@@ -10,7 +10,6 @@ namespace rerun.components;
 // ---
 
 /// A point in 2D space.
-// TODO(cmc): bring back attr.rust.tuple_struct
 struct Point2D (
   "attr.python.aliases": "npt.NDArray[np.float32], Sequence[float], Tuple[float, float]",
   "attr.python.array_aliases": "npt.NDArray[np.float32], Sequence[float]",

crates/re_types/definitions/rerun/components/radius.fbs

@@ -14,7 +14,6 @@ struct Radius (
   "attr.python.aliases": "float",
   "attr.python.array_aliases": "float, npt.NDArray[np.float32]",
   "attr.rerun.legacy_fqname": "rerun.radius",
-  "attr.rust.tuple_struct",
   "attr.rust.derive": "Copy, PartialEq, PartialOrd",
   order: 100
 ) {

crates/re_types/definitions/rerun/components/transform3d.fbs

@@ -13,7 +13,6 @@ table Transform3D (
   // wrong schema for this component.
   //"attr.rerun.legacy_fqname": "rerun.transform3d",
   "attr.rust.derive": "PartialEq",
-  "attr.rust.tuple_struct",
   order: 100
 ) {
   /// Representation of the transform.

crates/re_types/source_hash.txt

@@ -1,4 +1,4 @@
 # This is a sha256 hash for all direct and indirect dependencies of this crate's build script.
 # It can be safely removed at anytime to force the build script to run again.
 # Check out build.rs to see how it's computed.
-4e7bff9578be94c0d8e42808d39c49e58b03a4b6dd5dd571dbf87ed7640fcca4
+b4f2c2b3b6518fd5c5b8fe2255952c6986895efe58cbc6ae0b56b0384a9ad930