添加L系列IPC

<p>Parameters to add L series camera in VMS4.0</p> <p>Type=Howen-L Module=LAUCH H264 User=888888 Key=888888 Port=3000 <img src="https://www.showdoc.cc/server/api/common/visitfile/sign/98122169693604598a79b803085c4397?showdoc=.jpg" alt="" /></p>