Add /dev/cuaU* USB serial devices to the allowed serial ports under FreeBSD.

Some ZWave devices are detect as modem. The /dev/ttyU* then doesn't work and
hang domoticz.

Author: xavier.beaudouin

main/Helper.cpp

@@ -200,6 +200,11 @@ std::vector<std::string> GetSerialPorts(bool &bUseDirectPath)
 				bUseDirectPath=true;
 				ret.push_back("/dev/" + fname);
 			}
+			else if (fname.find("cuaU")!=std::string::npos)
+			{
+				bUseDirectPath=true;
+				ret.push_back("/dev/" + fname);
+			}
 #endif
 #ifdef __APPLE__
 			else if (fname.find("cu.")!=std::string::npos)