添加开始停止发布本地流接口

Change-Id: I8ee38e772c469b37edcdef9c3827f98e8cc2f8cd

Author: tonychanchen

Source/SDK/LinkVideo/TIoTCoreXP2PBridge.h

@@ -136,6 +136,8 @@ extern NSNotificationName const TIoTCoreXP2PBridgeNotificationStreamEnd;
 - (void)setAudioRoute:(BOOL)isHandsFree ;
 //静音或回复音频   
 - (void)muteLocalAudio:(BOOL)mute;
+//静音或回复音频
+- (void)muteLocalVideo:(BOOL)mute;
 /*
  * 局域网相关接口
  */

Source/SDK/LinkVideo/TIoTCoreXP2PBridge.mm

@@ -490,6 +490,9 @@ - (void)setAudioRoute:(BOOL)isHandsFree {
 - (void)muteLocalAudio:(BOOL)mute {
     [[TRTCCloud sharedInstance] muteLocalAudio:mute];
 }
+- (void)muteLocalVideo:(BOOL)mute {
+    [[TRTCCloud sharedInstance] muteLocalVideo:TRTCVideoStreamTypeBig mute:mute];
+}
 
 - (void)stopService:(NSString *)dev_name {
     [self stopVoiceToServer];