Tauon native entrypoint (experimental)

[Taiko2k]

I've been in the AI lab cooking something HORRBILE... something CURSED!!

This PR replaces tauonmb.sh, and to an extent the role of __main__.py as the entry point. Instead we have a native binary as the entry point. So Tauon instead of being a Python app is now a C++ app that embeds Python.

Motivations:

1. It reduces external dependencies. This PR removes pysdl3 and pyinstaller.
2. It reduces launch to splash time. (In my testing by about 200ms). This keeps IPC transfer times low for all platforms instead of using the Linux only .sh files.

Downside: It introduces a lot of technicality, as we are now using a custom package script in place of pyinstaller.

[Solarunit]

Tauon in rust when 🙃

[Taiko2k]

@Solarunit May b one day. Probably c++ would be better tho. This direction opens the path for a more staged optimisation into c++ that fits Tauons architecture.

[Solarunit]

no idea if rust or c++ would be better, but SDL UI should stay! 🙂