Feature-9518: Scale-in/Scale-out commands triggered from the UI

 * In NS Instances page. Click "Manual Scaling" in the actions menu.
 * Then a new pop-up page will opened.
 * In the popup there will be a list box which is filled with the all scaling-group-descriptor names captured from all VNFDs in the NSD and whoose scaling-type is "manual".
 * Select scale in / scale out.
 * When the scaling-group-descriptor name and the scaling direction are selected then Click Apply button.
 * The pop-up window is closed and the page is directed to "History of operations" page for this NS.

Change-Id: Iaaa1500bcabea4ebda89f6c11ea91b28396aa42f
Signed-off-by: Barath Kumar R <barath.r@tataelxsi.co.in>
diff --git a/src/app/instances/ns-instances/NSInstancesComponent.html b/src/app/instances/ns-instances/NSInstancesComponent.html
index 6047a2f..523ee44 100644
--- a/src/app/instances/ns-instances/NSInstancesComponent.html
+++ b/src/app/instances/ns-instances/NSInstancesComponent.html
@@ -31,6 +31,7 @@
             <span><i class="fas fa-check-circle text-success"></i>{{operationalStateSecondStep}} /
                 {{configStateSecondStep}}</span>
             <span><i class="fas fa-times-circle text-danger"></i>{{operationalStateThirdStep}}</span>
+            <span><i class="fas fa-compress-alt text-success"></i>{{operationalStateFourthStep}}</span>
         </nav>
     </div>
     <page-per-row class="mr-2" (pagePerRow)="onChange($event)"></page-per-row>