feat(): 增加拉框放大，缩小。接收下级设备控制信令增加200返回。

szy833

2022-01-15 c6202b3b2754ce81234940caa108ca24448ac9ca

 web_src/src/components/dialog/chooseChannelForStream.vue

@@ -147,6 +147,7 @@
                    method:"delete",
                    url:"/api/gbStream/del",
                    data:{
                        platformId: that.platformId,
                        gbStreams:  delData,
                    }
                }).then((res)=>{