Pull request #3604: KERNEL-14848 feat: VirtualGroupList组件新增getNodeByValue方法

Merge in VISUAL/fineui from ~ANNY/fineui:master to master

* commit '5acdba1e5b7159666566f01a5f28940a3f7bb684':
  KERNEL-14848 feat: VirtualGroupList组件新增getNodeByValue方法

packages/fineui/src/base/list/virtualgrouplist.js

@@ -214,4 +214,8 @@ export class VirtualGroupList extends Widget {
         ResizeDetector.removeResizeListener(this);
         this.restore();
     }
+
+    getNodeByValue(value) {
+        return this.container.getNodeByValue(value);
+    }
 }