[wgpu-hal] Migrate d3d12 backend over to windows-rs (#5956)

* windows-rs 0.58

* Clean up suspicious committed allocation workaround

* dx12: Flatten suballocation module

CHANGELOG.md

@@ -88,6 +88,10 @@ By @wumpf in [#6069](https://github.com/gfx-rs/wgpu/pull/6069), [#6099](https://
 
 - Replace `winapi` code in WGL wrapper to use the `windows` crate. By @MarijnS95 in [#6006](https://github.com/gfx-rs/wgpu/pull/6006)
 
+#### DX12
+
+- Replace `winapi` code to use the `windows` crate. By @MarijnS95 in [#5956](https://github.com/gfx-rs/wgpu/pull/5956)
+
 ## 22.0.0 (2024-07-17)
 
 ### Overview
@@ -749,7 +753,7 @@ The easiest way to make this code safe is to use shared ownership:
 ```rust
 let window: Arc<winit::Window>;
 // ...
-let surface = instance.create_surface(my_window.clone())?;
+let surface = instance.create_surface(window.clone())?;
 ```
 
 All platform specific surface creation using points have moved into `SurfaceTargetUnsafe` as well.

Cargo.toml

@@ -6,7 +6,6 @@ members = [
 
     # default members
     "benches",
-    "d3d12",
     "examples",
     "naga-cli",
     "naga",
@@ -24,7 +23,6 @@ members = [
 exclude = []
 default-members = [
     "benches",
-    "d3d12",
     "examples",
     "naga-cli",
     "naga",
@@ -96,8 +94,7 @@ indexmap = "2"
 itertools = { version = "0.10.5" }
 ktx2 = "0.3"
 libc = "0.2"
-# libloading 0.8 switches from `winapi` to `windows-sys`; permit either
-libloading = ">=0.7, <0.9"
+libloading = "0.8"
 libtest-mimic = "0.6"
 log = "0.4"
 nanorand = { version = "0.7", default-features = false, features = ["wyrand"] }
@@ -148,14 +145,10 @@ gpu-descriptor = "0.3"
 
 # DX dependencies
 bit-set = "0.8"
-gpu-allocator = { version = "0.27", default-features = false, features = [
-    "d3d12",
-    "public-winapi",
-] }
-d3d12 = { version = "22.0.0", path = "./d3d12/" }
+gpu-allocator = { version = "0.27", default-features = false }
 range-alloc = "0.1"
-winapi = "0.3"
 hassle-rs = "0.11.0"
+windows-core = { version = "0.58", default-features = false }
 
 # Gles dependencies
 khronos-egl = "6"