File _servicedata of Package budgie-backgrounds

<servicedata>
<service name="tar_scm">
                <param name="url">https://github.com/BuddiesOfBudgie/budgie-backgrounds.git</param>
              <param name="changesrevision">e2e314bef84fca804e1bd802898c7c7e72629de1</param></service></servicedata>