GUI -- Added routerId to AnnotationKeys; added test scenario for multi-homed hosts (routers).

Change-Id: Ief5f23fa1678152d5375a2b54fe5735c9632d588
diff --git a/web/gui/src/test/_karma/ev/multiHomed/ev_7_addHost_08.json b/web/gui/src/test/_karma/ev/multiHomed/ev_7_addHost_08.json
new file mode 100644
index 0000000..ed49aae
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/multiHomed/ev_7_addHost_08.json
@@ -0,0 +1,19 @@
+{
+  "event": "addHost",
+  "payload": {
+    "id": "A6:96:E5:03:52:5F/-1",
+    "ingress": "A6:96:E5:03:52:5F/-1/0-of:0000ffffffff0008/1",
+    "egress": "of:0000ffffffff0008/1-A6:96:E5:03:52:5F/-1/0",
+    "cp": {
+      "device": "of:0000ffffffff0008",
+      "port": 1
+    },
+    "labels": [
+      "192.168.1.202",
+      "A6:96:E5:03:52:5F"
+    ],
+    "props": {
+      "routerId": "router-one"
+    }
+  }
+}