GUI2 Extract Topology view in to its own library

Change-Id: I45597d0902c99b5b3d606966866cc518011c54a0
diff --git a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/nodeviceconnectedsvg/nodeviceconnectedsvg.component.html b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/nodeviceconnectedsvg/nodeviceconnectedsvg.component.html
new file mode 100644
index 0000000..efe044f
--- /dev/null
+++ b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/nodeviceconnectedsvg/nodeviceconnectedsvg.component.html
@@ -0,0 +1,23 @@
+<!--
+~ 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 xmlns:svg="http://www.w3.org/2000/svg" id="topo-noDevsLayer"
+       [attr.transform]="'translate(' + (zoomExtents.tx) + ',' + (450 * zoomExtents.sc) + '),' +
+       'scale(' + zoomExtents.sc + ')'"
+       style="visibility: visible;">
+    <svg:use width="100" height="100" class="noDevsBird" href="#bird"></svg:use>
+    <svg:text x="120" y="80">{{lionFn('no_devices_are_connected')}}</svg:text>
+</svg:g>
+