Botafar

Added

- More info added to 'could not connect to server'

Fixed

- CancelledError read from correct place now

Fixed

- Fixed a bug where an environment variable was required

Added

- Controls working: Button, Joystick, Slider
- Commands working: print, run
- Docs created, including: Getting started, Basics, Raspberry Pi tutorial, Twitch & Youtube livestreaming
- licence added
- changelog added