Sketching out request/showTraffic interactions between GUI server/client.

Change-Id: I78dfe0da6a7b4e03972a8ef11190101614d81a63
diff --git a/web/gui/src/main/webapp/json/ev/intentSketch/ev_8_onos.json b/web/gui/src/main/webapp/json/ev/intentSketch/ev_8_onos.json
new file mode 100644
index 0000000..8d5a50e
--- /dev/null
+++ b/web/gui/src/main/webapp/json/ev/intentSketch/ev_8_onos.json
@@ -0,0 +1,7 @@
+{
+  "event": "showTraffic",
+  "sid": 3,
+  "payload": {
+    "paths": []
+  }
+}