[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/sidenav-layout/sidenav-layout.component.ts

@@ -31,6 +31,9 @@ export class SidenavLayoutComponent implements OnInit, AfterViewInit, OnDestroy
 
     static STEP_OVER = 600;
 
+    /** The side that the drawer is attached to 'start' | 'end' page */
+    @Input() position = 'start';
+
     @Input() sidenavMin: number;
     @Input() sidenavMax: number;
     @Input() stepOver: number;