Merge "Refactor metadata tool to support metadata generation for different...

Merge "Refactor metadata tool to support metadata generation for different rules." into main am: 432c41ec am: a41042a2

Original change: https://android-review.googlesource.com/c/platform/build/+/2833290



Change-Id: I4ea6385ba4bd5946766116d166b3eb139bae53fe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>