GUI -- added topo test scenario skeleton for showHighlights.

Change-Id: Ie2cf901bc37343618563b38b3825b03a4c0db668

+{
+  "event": "addInstance",
+  "payload": {
+    "id": "ONOS",
+    "ip": "192.168.56.101",
+    "online": true,
+    "uiAttached": true,
+    "switches": 2,
+    "labels": [
+      "ONOS",
+      "192.168.56.101"
+    ]
+  }
+}

+{
+  "event": "addDevice",
+  "payload": {
+    "id": "of:0000000000000001",
+    "type": "switch",
+    "online": true,
+    "master": "ONOS",
+    "labels": [
+      "",
+      "switch-1",
+      "of:0000000000000001"
+    ],
+    "metaUi": {
+      "x": 200,
+      "y": 200
+    }
+  }
+}

+{
+  "event": "addDevice",
+  "payload": {
+    "id": "of:0000000000000002",
+    "type": "switch",
+    "online": true,
+    "master": "ONOS",
+    "labels": [
+      "",
+      "switch-2",
+      "of:0000000000000002"
+    ],
+    "metaUi": {
+      "x": 400,
+      "y": 220
+    }
+  }
+}

+{
+  "event": "addLink",
+  "payload": {
+    "id": "of:0000000000000001/5-of:0000000000000002/7",
+    "type": "direct",
+    "online": true,
+    "linkWidth": 2,
+    "src": "of:0000000000000001",
+    "srcPort": "5",
+    "dst": "of:0000000000000002",
+    "dstPort": "7",
+    "props" : {
+      "BW": "70 Gb"
+    }
+  }
+}

+{
+  "event": "showHighlights",
+  "payload": {
+    "devices": [],
+    "hosts": [],
+    "links": []
+  }
+}

+{
+  "event": "showHighlights",
+  "payload": {
+    "devices": [],
+    "hosts": [],
+    "links": [
+      {
+        "css": "primary",
+        "id": "of:0000000000000001/5-of:0000000000000002/7",
+        "label": "Antz!"
+      }
+    ]
+  }
+}

+{
+  "event": "showHighlights",
+  "payload": {
+    "devices": [],
+    "hosts": [],
+    "links": []
+  }
+}

+{
+  "comments": [
+    "Demo of adding badges to devices"
+  ],
+  "title": "Demo adding badges",
+  "params": {
+    "lastAuto": 5
+  },
+  "description": [
+    "Demonstrate the device badging feature."
+  ]
+}

 {
   "comments": [
-    "Stepping through showTraffic"
+    "Stepping through showTraffic",
+    "NOTE: showTraffic event is deprecated",
+    "      This needs to be re-worked to use showHighlights"
   ],
   "title": "Show Traffic Scenario",
   "params": {