IEC61850 client port not configurable

[ThE-MaRaC]

In the osgp-adapter-protocol-iec61850.properties there is a property for client port configuration. Default value is: iec61850.port.client=102 But, this value is never used, instead, a hardcoded value from Iec61850DeviceConnectionService.java is used. private static final int IEC61850_DEFAULT_PORT = 102; Please let me know if I should provide a pull request with the correction.