First part of migrating Topo2 to GUI2

Change-Id: I316dd34cba161688e01dfb7b340bff5f2c3c57d4
diff --git a/web/gui2/src/main/webapp/app/view/topology/layer/nodeviceconnectedsvg/nodeviceconnectedsvg.component.html b/web/gui2/src/main/webapp/app/view/topology/layer/nodeviceconnectedsvg/nodeviceconnectedsvg.component.html
new file mode 100644
index 0000000..d201c8a
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/view/topology/layer/nodeviceconnectedsvg/nodeviceconnectedsvg.component.html
@@ -0,0 +1,21 @@
+<!--
+~ Copyright 2018-present Open Networking Foundation
+~
+~ Licensed under the Apache License, Version 2.0 (the "License");
+~ you may not use this file except in compliance with the License.
+~ You may obtain a copy of the License at
+~
+~     http://www.apache.org/licenses/LICENSE-2.0
+~
+~ Unless required by applicable law or agreed to in writing, software
+~ distributed under the License is distributed on an "AS IS" BASIS,
+~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+~ See the License for the specific language governing permissions and
+~ limitations under the License.
+-->
+<svg:g id="topo-noDevsLayer" transform="translate(500,500)" style="visibility: visible;">
+    <svg:g id="reposition" #reposition [attr.transform]="centre(reposition.getBBox())">
+        <svg:use width="100" height="100" class="noDevsBird" href="#bird"></svg:use>
+        <svg:text x="120" y="80">No Devices Are Connected</svg:text>
+    </svg:g>
+</svg:g>
\ No newline at end of file