sdl input added, threads added
thread exit functionality added; exit on ENTER added; command generation added
speed control aded
joystick analog control added
simple telemetry routine added
Workflow on car scheme picture..
Migrated from SDL to SDL2 library. Wheels on car scheme added/
Direction arrows added; Screen update routine added
Speedometer added; ScreenUpdate small changes.
Addres, port and joystick select command line options added