Android additions to timezone-boundary-builder am: 4fd94cfcf9 am: 1d4954a75e am: 416012905c am: 82d8ad561d

Original change: https://android-review.googlesource.com/c/platform/external/timezone-boundary-builder/+/1287532

Change-Id: If7974414a9ec64c02181defa0f6ff3d261d00e2c