crowdin: Add voting

* Since we can't owner-CR+2 on most projects,
  submitting is often not possible directly
* We are still required to vote before merge, so add this as an option
* Change "-s/--submit" to "-g/--gerrit" with options "vote" and "submit"

Change-Id: If8e6fd815d8be64ba5bac4fc79b63f5ac9f210ed
3 files changed