GUI -- Re-instated Packet / Optical Layer filters.
- Adding ONOS instance fly-in pane. Note: still WIP.
- refactored onos.ui.addFloatingPanel to allow TL vs. TR.
- added instance pane to topo view.
- implemented addInstance() event.
- refactored event tracing.
- added instances test scenario.

Change-Id: I58d9769afa8aee9079ec778496cbc47bef329608
diff --git a/web/gui/src/main/webapp/json/ev/instances/ev_2_onos.json b/web/gui/src/main/webapp/json/ev/instances/ev_2_onos.json
new file mode 100644
index 0000000..be2aefb
--- /dev/null
+++ b/web/gui/src/main/webapp/json/ev/instances/ev_2_onos.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "onos-2",
+    "online": true,
+    "labels": [
+      "onos-2",
+      "192.168.2.2"
+    ]
+  }
+}