Adding buck build of the meta openflow app.

Change-Id: I56f0ed3776c958680fd046295d0fbd6f18a32c56
diff --git a/tools/package/BUCK b/tools/package/BUCK
index a452ce4..f6a00ba 100644
--- a/tools/package/BUCK
+++ b/tools/package/BUCK
@@ -30,6 +30,7 @@
   '//providers/pcep:onos-providers-pcep-oar',
   '//providers/null:onos-providers-null-oar',
   '//providers/openflow/base:onos-providers-openflow-base-oar',
+  '//providers/openflow/app:onos-providers-openflow-app-oar',
   '//providers/rest:onos-providers-rest-oar',
   '//providers/isis:onos-providers-isis-oar',