Update to latest WebGPU

[almarklein]

• Copy latest IDL spec.
• Apply some fixes to our IDL parser.
• Check diff of structs to see if there are more field renames.
• Run codegen and apply fixes in base.py and rs.py
• Update examples, utils and tests accordingly.
• Update pygfx.
• Review the changes in base.py and rs.py.

Notable changes:

• GPUCanvasContext.get_swap_chain_preferred_format(): now takes an adapter instead of a device.
• GPUAdapter.extensions: is now called features.
• GPUAdapter.request_device(): the extensions and limit args are now non_guaranteed_features and non_guaranteed_limits.
• Device.default_queue: is now called queue.
• Device.create_compute_pipeline(): the compute_stage arg is now called compute.
• Device.create_bind_group_layout() has changed the required structure of the layout enty dicts.
• Device.create_render_pipeline() has changed a lot in terms of shape of input dicts. See new docs.
• Texture.create_view(): args mip_level_count and array_layer_count are default None instead of 0.
• GPUCommandEncoder.begin_render_pass(): the color_attachments and depth_stencil_attachment arguments have their attachment field renamed to view.
• Flag TextureUsage has field OUTPUT_ATTACHMENT renamed to RENDER_ATTACHMENT.
• Enum BindingType is split up in different enums for buffer, sampler, sampled texture and storage texture.
• Enum BlendFactor has some of its field names changed.
• Enum VertexFormat has its field names changed, e.g. ushort2 -> uint16x2.

[almarklein]

Bijna!