File _service of Package scotch

<services>
		<service name="obs_scm">
			<param name="scm">git</param>
			<param name="filename">scotch</param>
			<param name="url">https://gitlab.inria.fr/scotch/scotch.git</param>
			<param name="versionformat">@PARENT_TAG@</param>
			<param name="versionrewrite-pattern">v(\d).(\d).(\d)</param>
			<param name="versionrewrite-replacement">\1.\2.\3</param>
			<param name="revision">master</param>
  </service>
  <service mode="buildtime" name="set_version" />
</services>