feat: add mergeChldren API for shell node

packages/shell/src/node.ts

@@ -226,6 +226,20 @@ export default class Node {
     return this[nodeSymbol].getDOMNode();
   }
 
+  /**
+   * 执行新增、删除、排序等操作
+   * @param remover
+   * @param adder
+   * @param sorter
+   */
+  mergeChildren(
+    remover: (node: Node, idx: number) => boolean,
+    adder: (children: Node[]) => any,
+    sorter: (firstNode: Node, secondNode: Node) => number,
+  ) {
+    return this.children?.mergeChildren(remover, adder, sorter);
+  }
+
   /**
    * 返回节点的尺寸、位置信息
    * @returns