[ONOS-4694] YANG management system outline and YMSM/YDT interfaces

Change-Id: I050ed98ba18edc2c2cea2abafeee6d8c9061b579
diff --git a/apps/yms/BUCK b/apps/yms/BUCK
new file mode 100644
index 0000000..163d67e
--- /dev/null
+++ b/apps/yms/BUCK
@@ -0,0 +1,11 @@
+BUNDLES = [
+  '//apps/yms/api:onos-apps-yms-api',
+  '//apps/yms/app:onos-apps-yms-app',
+]
+
+onos_app(
+  title = 'YANG Management System App',
+  category = 'Utility',
+  url = 'http://onosproject.org',
+  included_bundles = BUNDLES,
+)