iOS:use JSDispatcher to avoid overstock too many js tasks

doric-iOS/Pod/Classes/Util/DoricJSDispatcher.h

@@ -0,0 +1,25 @@
+/*
+ * Copyright [2019] [Doric.Pub]
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+//
+// Created by pengfei.zhou on 2020/3/25.
+//
+
+#import <Foundation/Foundation.h>
+#import "DoricViewNode.h"
+
+@interface DoricJSDispatcher : NSObject
+- (void)dispatch:(DoricAsyncResult *(^)(void))block;
+@end