File _aggregate of Package gstreamer

<aggregatelist>
  <aggregate project="multimedia:libs">
    <package>chromaprint</package>
    <package>ffmpeg</package>
    <package>gstreamer</package>
    <package>gstreamer-plugins-bad</package>
    <package>gstreamer-plugins-base</package>
    <package>libass</package>
    <package>libcdio</package>
    <package>libcdio-paranoia</package>
    <package>libvpx</package>
  </aggregate>
</aggregatelist>