[DEV] Update

Hi,

I'm using Butler to manage files on itch, so it will be easier and more transparent to push new update.

Otherwise I'm working on a new version with directly the editor in Rust rather than Python. I did it in Python originally to test the engine to see if it works :) But well, now a pure implementation will be a good choice.

I'm also working on a chiptune audio support, like prototracker, with different format support like MOD and MML. I'm also thinking about adding directly the scripting language (Python/Lua) directly in the public repository and to not depends on third party. It will allow me to do directly internal modification.