HarmonyOS工程导入flutter module编译出的har包，使用FlutterEntry进入指定flutter 页面，会导致flutter module又启动一次

需要注册一下插件：

class ceFlutterEntry extends FlutterEntry {
  configureFlutterEngine(flutterEngine: FlutterEngine): void {
    super.configureFlutterEngine(flutterEngine);
    GeneratedPluginRegistrant.registerWith(flutterEngine);
    this.delegate?.addPlugin(new BaseFlutterPlugin());
  }
}

@Component
export struct ceFlutterPage {
  aboutToAppear(): void {
    this.flutterEntry = new ceFlutterEntry(getContext(this), params);
  }
}