File ymp.xml of Package yast2-metapackage-handler

<?xml version="1.0" encoding="UTF-8"?>
<mime-info xmlns="http://www.freedesktop.org/standards/shared-mime-info">
<!-- Most MIME types are already present in freedesktop.org.xml, but not all. -->
  <mime-type type="text/x-suse-ymp">
    <glob pattern="*.ymp" />
  </mime-type>
</mime-info>