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          ocarina-instances-components.adb) : When instantiating
          feature groups, set the Parent_Component field of all the
          group feature as the containing component instance of the
          feature group.

          Patch contributed by Bechir Zalila @ ENIS

        groups:
        - Copy the destinations of the feature group to the
        destinations (and only the destinations) of the corresponding
        feature
        - Same thing for the sources.

        Patch contributed by Bechir Zalila @ ENIS

        Use thread Compute_Execution_Time property to indicate how
        long a resource is used.

        Fixes issue #11

          output.

          Update reference output accordingly.