Fixed #505 - Add id property to OverlayPanel

src/components/overlaypanel/OverlayPanel.d.ts

@@ -1,6 +1,7 @@
 import Vue, { VNode } from 'vue';
 
 export declare class OverlayPanel extends Vue {
+    id?: string;
     ismissable?: boolean;
     showCloseIcon?: boolean;
     appendTo?: string;

src/views/overlaypanel/OverlayPanelDoc.vue

@@ -52,6 +52,12 @@ toggle(event) {
                             </tr>
 						</thead>
 						<tbody>
+                            <tr>
+                                <td>id</td>
+                                <td>string</td>
+                                <td>null</td>
+                                <td>Unique identifier of the element.</td>
+                            </tr>
                             <tr>
                                 <td>dismissable</td>
                                 <td>boolean</td>