serial and logging changes

crazyflie_groundstation/src/crazyflieGroundStation.cpp

crazyflie_groundstation/src/quadcopterData.cpp

...undstation/src/serial/impl/list_ports/list_ports_linux.cc

...roundstation/src/serial/impl/list_ports/list_ports_osx.cc

...roundstation/src/serial/impl/list_ports/list_ports_win.cc

crazyflie_groundstation/src/serial/impl/unix.cc

crazyflie_groundstation/src/serial/impl/win.cc

crazyflie_groundstation/src/serial/serial.cc

crazyflie_groundstation/src/userInput.cpp

crazyflie_groundstation/src/userOutput.cpp

groundStation/adapters/crazyflie/Makefile

groundStation/adapters/crazyflie/src/cf_adapter.c

groundStation/adapters/crazyflie/src/cf_adapter.h

groundStation/adapters/crazyflie/src/cf_callbacks.c

groundStation/src/backend/backend.c

groundStation/src/backend/backend_adapter.c

groundStation/src/backend/backend_adapter.h

groundStation/src/backend/logfile.c

groundStation/src/backend/logfile.h

groundStation/src/backend/param.c