add all frontend files

node_modules/antd/lib/form/hooks/useChildren.js

@@ -0,0 +1,15 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = useChildren;
+var _toArray = _interopRequireDefault(require("rc-util/lib/Children/toArray"));
+function useChildren(children) {
+  if (typeof children === 'function') {
+    return children;
+  }
+  const childList = (0, _toArray.default)(children);
+  return childList.length <= 1 ? childList[0] : childList;
+}