Add shader execution tests on the feature subgroup-size-control#4643

Jiawei-Shao wants to merge 4 commits into

gpuweb:maingpuweb/cts:mainfrom

Jiawei-Shao:test-subgroup-size-control-execution-testJiawei-Shao/cts:test-subgroup-size-control-execution-testCopy head branch name to clipboard