Kernel: Added variability support to kernel

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

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

org.fortiss.tooling.feature/feature.xml

@@ -79,6 +79,27 @@
          install-size="0"
          version="0.0.0"
          unpack="false"/>
+         
+   <plugin
+         id="org.fortiss.tooling.ext.variability"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+
+	<plugin
+         id="org.fortiss.tooling.ext.variability.ui"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
+         
+    <plugin
+         id="org.fortiss.variability"
+         download-size="0"
+         install-size="0"
+         version="0.0.0"
+         unpack="false"/>
 
    <plugin
          id="org.fortiss.tooling.ext.reuse"