Variability: Added variability to Logical Architecture

Issue-Ref: 3776
Issue-Url: af3#3776

Signed-off-by: Andreas Bayha <bayha@fortiss.org>

org.fortiss.af3.phoenix.feature/feature.xml

@@ -334,6 +334,20 @@ limitations under the License.
          install-size="0"
          version="0.0.0"
          unpack="false"/>
+         
+   <plugin
+         id="org.fortiss.af3.variability.featuremodel"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+         
+   <plugin
+         id="org.fortiss.af3.variability.featuremodel.ui"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
 
    <plugin
          id="org.junit"