Generate an XML repo manifest to list git revisions

Test: Kokoro presubmit, examine the build's manifests manually
Change-Id: Ie0f49176948426f95cf0639b68b8d6dd0b273577
2 files changed
tree: 595e7dc2573fe40e47c993c17837f8776e972306
  1. gen_manifest.py
  2. OWNERS