Add kubevirt node related codec with unit tests

Change-Id: I0c68d4c3d0c7626a4b6b66e5c783631cb9be50a8
diff --git a/apps/kubevirt-node/app/src/test/resources/org/onosproject/kubevirtnode/codec/KubevirtWorkerNode.json b/apps/kubevirt-node/app/src/test/resources/org/onosproject/kubevirtnode/codec/KubevirtWorkerNode.json
new file mode 100644
index 0000000..70b449d
--- /dev/null
+++ b/apps/kubevirt-node/app/src/test/resources/org/onosproject/kubevirtnode/codec/KubevirtWorkerNode.json
@@ -0,0 +1,17 @@
+{
+  "hostname": "worker-01",
+  "type": "WORKER",
+  "managementIp": "172.16.130.4",
+  "dataIp": "172.16.130.4",
+  "integrationBridge": "of:00000000000000a1",
+  "phyIntfs": [
+    {
+      "network": "mgmtnetwork",
+      "intf": "eth3"
+    },
+    {
+      "network": "oamnetwork",
+      "intf": "eth4"
+    }
+  ]
+}
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