This CL adds a script to run tint over the shaders in a given folder and
attempt to generate the WGSL, HLSL, MSL and SPIRV-ASM shaders. The
GPUWeb CTS is added to third_party and the validation folder set as the
default folder to execute.
Change-Id: I63a0af056416e2f99ed8e3f92f9e2ca31c2b3e49
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/25561
Reviewed-by: Sarah Mashayekhi <sarahmashay@google.com>
Commit-Queue: Sarah Mashayekhi <sarahmashay@google.com>