Expose missing native features up to v0.19.4

[davnotdev]

#190 This exposes WGPU native features up to v0.19.4. However, I'm not sure what values should be attributed to each feature. From what I've observed, the "correct" ordering of features doesn't matter since they change with each WGPU version anyway.

[rajveermalviya]

Thanks for working on this @davnotdev

Unfortunately we can't expose some features directly because they also need to be coupled with API changes. So for this PR we can just remove such features for now, and make separate PRs for the ones that require API changes.

Here's a list I made for the features that can't exposed directly:

TIMESTAMP_QUERY_INSIDE_PASSES

Need to expose functions RenderPassEncoder::write_timestamp & ComputePassEncoder::write_timestamp.

ADDRESS_MODE_CLAMP_TO_ZERO

Need to expose struct member SamplerDescriptor.border_color.

ADDRESS_MODE_CLAMP_TO_BORDER

Need to expose enum AddressMode::ClampToBorder

POLYGON_MODE_LINE & POLYGON_MODE_POINT

Need to expose struct member PrimitiveState.polygon_mode.

CONSERVATIVE_RASTERIZATION

Need to expose struct member PrimitiveState.conservative.

CLEAR_TEXTURE

Need to expose function CommandEncoder::clear_texture.

SPIRV_SHADER_PASSTHROUGH

Need to expose function Device::create_shader_module_spirv

MULTIVIEW

Need to expose struct member RenderPipelineDescriptor.multiview

[davnotdev]

Sounds good! Thanks for listing them out too, that helps immensely.

[rajveermalviya]

Thanks!

[Speak2Erase]

I'd like to contribute to the project by re-exposing some of these features- how would I do that?