feat: add api for system clock update

zhangzengfei

2019-10-21 e871758bd82d9a4fbce42e43c9665d869c240dfb

 controllers/cameraPolygon.go

@@ -116,7 +116,7 @@
   if flag {
      util.ResponseFormat(c,code.Success,data)
   } else {
      util.ResponseFormat(c,code.ComError,data)
      util.ResponseFormat(c,code.ComError,"更新失败")
   }
}