Possible MinGW support (needs a bit of help)
Hi, I started to make this library into a MSYS2 MINGW64 package but ran into multiple issues and I would like to know if you could guide me to fix those. (I already spent 6 hours on this... I do not want to abandon)

Firstly everything is compiled and packaged fine (even though I had to patch a file because `SDL2-static` didn't exist and it was simply `SDL2`) but when installing the package and importing pyxel  I only have `pyxel.pyxel_wrapper` available and nothing else.
I also tried directly installing the wheel, which didn't work, pip telling me my system didn't support the wheel (maybe something to fo with MSYS environment)
And the last issue is with `pyxel.exe` which simply doesn't work, giving this error: `Fatal error in launcher: Unable to find an appended archive.`


I do not ask for you to directly help me (and you might not have the time to) but more to guide me and fix those problems.