Moving Multicast subsystem into app and refactoring APIs to support multihomed sources and sinks

Change-Id: I95d07b163c619b018ff106159b134ff214aa2ffd
diff --git a/apps/pom.xml b/apps/pom.xml
index 1212a5a..fe5661a 100644
--- a/apps/pom.xml
+++ b/apps/pom.xml
@@ -100,6 +100,7 @@
         <module>cfm</module>
         <module>routeradvertisement</module>
         <module>simplefabric</module>
+        <module>mcast</module>
     </modules>
 
     <properties>