[automerger skipped] Add metadata generator tool for test spec metadata...

[automerger skipped] Add metadata generator tool for test spec metadata generation. am: 16291ef6 -s ours

am skip reason: Merged-In I404b57224828149f26bcf4deadb662f513886231 with SHA-1 51f97c19 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/25503198



Change-Id: I9756091bc7bd287d8622a4dc27165896036e5d90
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>