[ADF-3512] SidenavLayoutComponent option to show the sidebar on the right (#3768)

* add sidebar end start property

* add demo and test

* fix test

* fix failing test

lib/core/layout/components/header/header.component.ts

@@ -32,6 +32,9 @@ export class HeaderLayoutComponent implements OnInit {
     @Input() showSidenavToggle: boolean = true;
     @Output() clicked = new EventEmitter<any>();
 
+    /** The side that the drawer is attached to 'start' | 'end' page */
+    @Input() position = 'start';
+
     toggleMenu() {
         this.clicked.emit(true);
     }