Bionicblue

Quick patch to update URLs in the in-game prototype message to point to new websites of this game project and its parent project.

- options screen and underlying services were finally implemented
- replaced old name of parent project by new one (identifiers/URL/logo)
- package metadata now relies solely on the pyproject.toml file
- setup.cfg isn't used anymore and was thus removed
- README text and media were improved
- includes new instructions in the subsection about contributing

New systems/services like:

- main menu
- title screen
- configurable controls for keyboard and gamepad

We also adopted pygame-ce as the game library in lieu of regular pygame.

Python 3.7 or above is now required to play the game.

We also added the needed backend to support input playing/recording. Such services are mostly functional. They were tested and were working fine before, but now they need a few small changes to take into account recent changes/additions related to the usage of configurable controls for keyboard and gamepad.