[ONOS-5432] Add CLI for refresh/reprogram the data plane for the existing VM.

- Add CLI to purge flow rules installed by openstack apps.
- Add CLI to reinstall flow rules for the existing virtual instances.
- Remove CREATE_TIME from host annotation and revert to use host as a key of security group rule map.

Change-Id: Ie647e5a8c86e86deb8ff050ecf280527ad218eda
diff --git a/apps/openstacknetworking/cli/src/main/java/org/onosproject/openstacknetworking/cli/package-info.java b/apps/openstacknetworking/cli/src/main/java/org/onosproject/openstacknetworking/cli/package-info.java
new file mode 100644
index 0000000..92d0a2c
--- /dev/null
+++ b/apps/openstacknetworking/cli/src/main/java/org/onosproject/openstacknetworking/cli/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2015-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.
+ */
+
+/**
+ * CLI implementation for refresh/reprogram the data plane for the existing VM(OpenStackInstance).
+ */
+package org.onosproject.openstacknetworking.cli;