create license management

src/app/uikit/datepicker/datepicker.component.ts

@@ -31,6 +31,7 @@ export class UikitFlatpickrJalaliComponent implements OnInit {
   @Input() options: Partial<BaseOptions> = {};
   @Input() showLabel: boolean = true;
   @Input() showErrors: boolean = true;
+  @Input() hint?: string;
 
   @Output() valueChange = new EventEmitter<string>();