Expose WebGPU in Lime

[Fancy2209]

In a way a follow up issue to #754 I guess?
Opened this for discussion and tracking, as I feel this should be discussed

People have been asking for a modern Graphics API, WebGPU will allow for this more easily than other options because:

• Doesn't depend on one specific Windowing library (like SDL GPU only working with SDL3 even tho we still have some SDL2 only targets like WinRT and I guess )
• Works on Browsers without worrying about it only working on WASM, and works on native trough either Dawn and WGPU-Native that abstract over Vulkan, Metal and D3D12
• Works on Android, iOS, Windows, Linux, macOS and HTML5, and we could probably find a way to get it working trough offscreen

My current plan is to use wgpu-native instead of Dawn because:

1. Easier to integrate
2. It isn't made by Google
3. It has been battle tested, WGPU is used in Firefox, Servo, Deno and Ruffle

WebGPU will provide some issues though:

• Context3D is pretty much made for OpenGL, I have no idea if we can realistically implement it well with WebGPU
• WGPU-Native has support for taking in GLSL, WGSL and SPIR-V, WebGPU on JS only takes WGSL, so I may need to find a way to compile Naga as a WASM library and expose it to JS for GLSL. Naga (WebGPU Shader Compiler) also can only take GLSL 4.4 in, not sure if that'll be an issue
• WebGPU is on a very breaking period

First step will be exposing WebGPU on lime by adding a WebGPU rendering context for Web and Native, there has been some work on this, as @dimensionscape has been working on a bindings generator based on the yml the WebGPU C Headers are made from.