[ONOS-5916] Add skeleton code of mapping management application

Change-Id: I267f07d3869a88066428281c91e6647fc1216056
diff --git a/modules.defs b/modules.defs
index 702dc5a..cdc20ea 100644
--- a/modules.defs
+++ b/modules.defs
@@ -177,6 +177,7 @@
     '//apps/castor:onos-apps-castor-oar',
     '//apps/yms:onos-apps-yms-oar',
     '//apps/ofagent:onos-apps-ofagent-oar',
+    '//apps/mappingmanagement:onos-apps-mappingmanagement-oar',
 ]
 
 APP_JARS = [