Archived old OpenGL gaming core.

Kajetan Johannes Hammerle 33e0b48713 refactoring 4 lat temu
tests e1478f0bd2 string splitting and tests 4 lat temu
utils 33e0b48713 refactoring 4 lat temu
Main.cpp e1478f0bd2 string splitting and tests 4 lat temu
meson.build e1478f0bd2 string splitting and tests 4 lat temu