Add a power management application

Change-Id: I7f3271b6f45d0e0b990049db1333843a0cd5f06a
diff --git a/modules.defs b/modules.defs
index ffd756a..5ea50a2 100644
--- a/modules.defs
+++ b/modules.defs
@@ -225,6 +225,7 @@
     '//apps/p4-tutorial/icmpdropper:onos-apps-p4-tutorial-icmpdropper-oar',
     '//apps/cfm:onos-apps-cfm-oar',
     '//apps/routeradvertisement:onos-apps-routeradvertisement-oar',
+    '//apps/powermanagement:onos-apps-powermanagement-oar',
 ]
 
 PROTOCOL_APPS = [