新增TcpGateWay服务，支持通过配置进行路由转发

sysservice/tcpgateway/IRouter.go

@@ -0,0 +1,11 @@
+package tcpgateway
+
+type IRouter interface {
+	RouterMessage(clientId uint64,msgType uint16,msg []byte) //消息转发
+	RouterEvent(clientId uint64,eventType string) bool//消息转发
+	Load() //加载路由规则
+
+	OnDisconnected(clientId uint64)
+	OnConnected(clientId uint64)
+	//ReplyMessage(clientId uint64,msg []byte)
+}