Implement kubevirt router store, manager and codec with unit tests

Change-Id: Ib93a71326aa35b4817f0e6b6c97d5f57b26fe470
diff --git a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java
index 3f5620e..0c97fb6 100644
--- a/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java
+++ b/apps/kubevirt-networking/api/src/main/java/org/onosproject/kubevirtnetworking/api/Constants.java
@@ -87,6 +87,7 @@
     public static final int CLI_SEG_ID_LENGTH = 10;
     public static final int CLI_LABELS_LENGTH = 30;
     public static final int CLI_CONTAINERS_LENGTH = 30;
+    public static final int CLI_FLAG_LENGTH = 10;
     public static final int CLI_MARGIN_LENGTH = 2;
 
     public static final int PRIORITY_STATEFUL_SNAT_RULE = 40500;