Removing need for boilerplate app.xml; Instead defining onos.app.name and onos.app.origin (optional) is sufficient to trigger generation of boilerplate app.xml and features.xml files.

Change-Id: Ied8f3f8bf8774fae85e11c79a733b34dd5868949
diff --git a/providers/null/pom.xml b/providers/null/pom.xml
index e6d417d..f846fbc 100644
--- a/providers/null/pom.xml
+++ b/providers/null/pom.xml
@@ -31,6 +31,10 @@
 
     <description>Null southbound providers application</description>
 
+    <properties>
+        <onos.app.name>org.onosproject.null</onos.app.name>
+    </properties>
+
     <dependencies>
         <dependency>
             <groupId>org.osgi</groupId>