[crostestutils] Add CLI to tauto test metadata modifier script
Add a CLI to specify tests on which to filter and actions to perform.
Also add appending/prepending contacts functionality and fix a bug
where only the first successful action would be applied to a file.
BUG=None
TEST=unit tests pass, as does local verification
Change-Id: If062afa9d627cfc5595549e95fc40dc37b0d023e
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/4752955
Commit-Queue: Katherine Threlkeld <kathrelkeld@chromium.org>
Tested-by: Katherine Threlkeld <kathrelkeld@chromium.org>
Reviewed-by: Jesse McGuire <jessemcguire@google.com>
4 files changed
