Examples: WebGPU GPGPU Birds (#29081)

* init

* fix wgsl syntax

* Working image

* Fixed color and vertex shaders, need to make minor adjustments, and add more instructive comments

* add lighting

* try to fix compute

* testing

* add labels to uniforms and storage buffers

* add back missing velocity scalar of 10

* change remainder to mod

* fix loop

* fix webGL compatibility

* cleanup

* update screenshot

* remove lights, remove normals vertex attribute warning

Author: cmhhelgeson

examples/files.json

@@ -311,6 +311,7 @@
 		"webgpu_clearcoat",
 		"webgpu_clipping",
 		"webgpu_compute_audio",
+		"webgpu_compute_birds",
 		"webgpu_compute_geometry",
 		"webgpu_compute_particles",
 		"webgpu_compute_particles_rain",