Added the FlashComponent in to GUI 2

Change-Id: I80923759cc70dbd902e478a5ad995621543d29f1
diff --git a/web/gui2/src/main/webapp/app/fw/layer/flash/flash.component.html b/web/gui2/src/main/webapp/app/fw/layer/flash/flash.component.html
new file mode 100644
index 0000000..5566013
--- /dev/null
+++ b/web/gui2/src/main/webapp/app/fw/layer/flash/flash.component.html
@@ -0,0 +1,27 @@
+<!--
+~ 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.
+-->
+<div id="flash">
+    <svg *ngIf="enabled" [attr.width]="width" [attr.height]="height" [attr.viewBox]="vbox" >
+        <g class="flashItem" [@flashState]="enabled?'active':'inactive'">
+            <text #flashtext>{{ message }}</text>
+            <rect [attr.opacity]="0.5" [attr.rx]="rx"
+                      [attr.x]="-flashtext.getBBox().width/2-xpad"
+                      [attr.y]="flashtext.getBBox().y-ypad"
+                      [attr.height]="flashtext.getBBox().height+ypad*2"
+                      [attr.width]="flashtext.getBBox().width+xpad*2"></rect>
+        </g>
+    </svg>
+</div>
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