Add logging file option
Since we have switched to cx_freeze, the logging outpout are no more written to a log file by default but just discarded on Windows.
Ref: https://discuss.tryton.org/t/logging-of-desktop-client-for-windows/2075/2
Since we have switched to cx_freeze, the logging outpout are no more written to a log file by default but just discarded on Windows.
Ref: https://discuss.tryton.org/t/logging-of-desktop-client-for-windows/2075/2