File _service of Package libappimage

<services>
  <service name="obs_scm">
    <param name="scm">git</param>
    <param name="url">https://github.com/AppImageCommunity/libappimage.git</param>
    <param name="revision">master</param>
    <param name="versionformat">git.%cd.%h</param>
    <param name="changesgenerate">enable</param>
  </service>
  <service name="tar" mode="buildtime"/>
  <service name="set_version"/>
</services>