[RFC] vulkan on webgpu native

bring webgpu native for webassembly, reuse vulkan code as much as possible

to be investigated

webassembly vulkan build system integration

build tint library

runtime comp➡️preprocess➡️spirv➡️wgsl

push constant to uniform binding

thin vulkan adaptor on webgpu native

webgpu native ci

resources

webgpu native implementation https://github.com/gfx-rs/wgpu-native https://github.com/google/dawn https://github.com/emscripten-core/emscripten/tree/main/system/include/webgpu

spir-v to wgsl https://dawn.googlesource.com/dawn/+/refs/heads/chromium/6530/docs/tint/spirv-reader-overview.md https://github.com/BabylonJS/twgsl

compatibility https://caniuse.com/webgpu