refactoring

comIF/OBSW_Ethernet_ComIF.py

comIF/OBSW_Serial_ComIF.py

comIF/obsw_com_interface.py

comIF/obsw_dummy_com_if.py

comIF/obsw_ethernet_com_if.py

comIF/obsw_serial_com_if.py

obsw_tmtc_client.py

sendreceive/OBSW_MultipleCommandsSenderReceiver.py

sendreceive/obsw_command_sender_receiver.py

sendreceive/obsw_sequential_sender_receiver.py

sendreceive/obsw_single_command_sender_receiver.py

sendreceive/obsw_tm_listener.py

test/OBSW_UnitTest.py

utility/obsw_args_parser.py

utility/obsw_exit_handler.py