WebGPU 需要开启 float32-filterable Feature

[xiaoiver]

https://www.w3.org/TR/webgpu/#float32-filterable
https://developer.chrome.com/blog/new-in-webgpu-119#filterable_32-bit_float_textures

未开启该特性的情况下，使用 F32_R 会报错：

None of the supported sample types (UnfilterableFloat) of [Texture] match the expected sample types (Float).
 - While validating entries[0] as a Texture.
Expected entry layout: { binding: 0, visibility: ShaderStage::Fragment, texture: { sampleType: TextureSampleType::Float, viewDimension: TextureViewDimension::e2D, multisampled: 0 } }
 - While validating [BindGroupDescriptor] against [BindGroupLayout]
 - While calling [Device].CreateBindGroup([BindGroupDescriptor]).

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Title: WebGPU needs to enable float32-filterable Feature