GUI -- Added onos.ui.addFloatingPanel() function.
- re-instated detail pane in topo2.js; triggered of non-zero selection state.
- single-select now requests details and displays them in detail pane.
- multi-select WIP.

Change-Id: I300a3dfd4d35abc82f832a172854c6aff50d8cd6
diff --git a/web/gui/src/main/webapp/json/ev/_capture/tx/requestDetails_ex1.json b/web/gui/src/main/webapp/json/ev/_capture/tx/requestDetails_ex1.json
new file mode 100644
index 0000000..6c88605
--- /dev/null
+++ b/web/gui/src/main/webapp/json/ev/_capture/tx/requestDetails_ex1.json
@@ -0,0 +1,9 @@
+{
+  "event": "requestDetails",
+  "sid": 15,
+  "payload": {
+    "id": "of:0000000000000003",
+    "class": "device"
+  }
+}
+