[ONOS-4291] Implement skeleton of gateway load balancer

 - Implements scalable gateway service
 - Implements gateway node model

Change-Id: I3713c67edcff9b10ccb23a7ad3323f5c30c7d6a3
diff --git a/apps/scalablegateway/api/src/main/java/org/onosproject/scalablegateway/package-info.java b/apps/scalablegateway/api/src/main/java/org/onosproject/scalablegateway/package-info.java
new file mode 100644
index 0000000..1768150
--- /dev/null
+++ b/apps/scalablegateway/api/src/main/java/org/onosproject/scalablegateway/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Application for ScaleableGateway management.
+ */
+package org.onosproject.scalablegateway;
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