fix: add batch msg listener (#49)

Author: lgz5689

ios/OpenImSdkRn.h

@@ -9,7 +9,7 @@
 #import <React/RCTEventEmitter.h>
 #endif
 
-@interface OpenIMSDKRN : RCTEventEmitter <RCTBridgeModule,Open_im_sdk_callbackOnConnListener,Open_im_sdk_callbackOnUserListener, Open_im_sdk_callbackOnAdvancedMsgListener, Open_im_sdk_callbackOnFriendshipListener, Open_im_sdk_callbackOnConversationListener, Open_im_sdk_callbackOnGroupListener>
+@interface OpenIMSDKRN : RCTEventEmitter <RCTBridgeModule,Open_im_sdk_callbackOnConnListener,Open_im_sdk_callbackOnUserListener, Open_im_sdk_callbackOnAdvancedMsgListener, Open_im_sdk_callbackOnFriendshipListener, Open_im_sdk_callbackOnConversationListener, Open_im_sdk_callbackOnGroupListener, Open_im_sdk_callbackOnBatchMsgListener>
 
 - (void)pushEvent:(NSString *) eventName data:(id) data;
 

ios/OpenImSdkRn.m

@@ -160,13 +160,18 @@ - (NSArray *)parseJsonStr2Array:(NSString *)jsonStr {
     Open_im_sdkSetFriendListener(self);
     Open_im_sdkSetGroupListener(self);
     Open_im_sdkSetAdvancedMsgListener(self);
+    Open_im_sdkSetBatchMsgListener(self);
     if (flag) {
         resolve(@"init success");
     }else{
         reject(@"-1",@"please check params and dir",nil);
     }
 }
 
+RCT_EXPORT_METHOD(setBatchMsgListener) {
+    Open_im_sdkSetBatchMsgListener(self);
+}
+
 RCT_EXPORT_METHOD(setUserListener) {
     Open_im_sdkSetUserListener(self);
 }