[ADF-4755][CardViewDate&SelectItemComponent] Provide a way to reset date and none option as default. (#4955)

* [ADF-4755] [CardViewDateItemComponent] Provide a way to reset date.

* Added clear icon to reset date to empty.
* Added Translation key to the new icon.

* * Added displayClearAction flag to toggle clear action.* Added None as default for the selectItem components.* Added displayNoneOption flag to toggle the default none option.

* * Fixed comments.

* * Added translation key for 'none'  option.

* * Updated dateItem css to the match recent changes.

* * Fixed failing unit tests* Updated TaskHeader components with the displayClearAction.

* * Updated demo shell card-view component to test the latest changes

lib/process-services/task-list/components/task-header.component.html

@@ -1,6 +1,6 @@
 <mat-card *ngIf="taskDetails" class="adf-card-container">
     <mat-card-content>
-        <adf-card-view [properties]="properties" [editable]="!isCompleted()"></adf-card-view>
+        <adf-card-view [properties]="properties" [editable]="!isCompleted()" [displayClearAction]="displayDateClearAction"></adf-card-view>
     </mat-card-content>
 
     <mat-card-actions class="adf-controls">

lib/process-services/task-list/components/task-header.component.ts

@@ -58,6 +58,7 @@ export class TaskHeaderComponent implements OnChanges, OnInit {
 
     properties: CardViewItem [];
     inEdit: boolean = false;
+    displayDateClearAction = false;
     dateFormat: string;
     dateLocale: string;