Add atomic_vec2u_min_max (#604)

Add `atomic_vec2u_min_max` WGSL lang feature
gpuweb/gpuweb#5425

Author: MendyBerger

webgpu.h

@@ -663,6 +663,7 @@ typedef enum WGPUFeatureName {
     WGPUFeatureName_TextureComponentSwizzle = 0x00000016,
     WGPUFeatureName_SubgroupSizeControl = 0x00000017,
     WGPUFeatureName_TextureCompressionUnaligned = 0x00000018,
+    WGPUFeatureName_AtomicVec2uMinMax = 0x00000019,
     WGPUFeatureName_Force32 = 0x7FFFFFFF
 } WGPUFeatureName WGPU_ENUM_ATTRIBUTE;
 

webgpu.json

@@ -538,6 +538,9 @@ enums:
       - name: texture_compression_unaligned
         doc: |
           TODO
+      - name: atomic_vec2u_min_max
+        doc: |
+          TODO
   - name: filter_mode
     doc: |
       TODO