File _service of Package permissions

<services>
  <service name="tar_scm" mode="disabled">
    <param name="url">https://github.com/openSUSE/permissions.git</param>
    <param name="scm">git</param>
    <param name="versionformat">%cd</param>
    <param name="changesgenerate">enable</param>
  </service>
  <service name="recompress" mode="disabled">
    <param name="file">*.tar</param>
    <param name="compression">xz</param>
  </service>
</services>