Some improvements into SerialSetup class.
TODO: save the selected parameters.
Added saving of selected paramters by the user for serial port.
Added slots to manage "Ok" and "Cancel" button into serial setup dialog.
Changed visibility of fillPortInfos() to public.
Added fixed parameters into metadata file.
Added serial port connection and disconnection functions.
Added a draft of serial communication protocol.
Added functions to manage keyboard events to control robot.
Some fix on serial port serttings.
Deleted useless debug messages.
Ended keyword events manage and added speed control on user interface.
WiP: protocol functions implementation.
Added control and parse of receive serial messages.