Archived old OpenGL gaming core.

Kajetan Johannes Hammerle 6b0ac15fb2 fixed grammar mistake 4 gadi atpakaļ
math 6b0ac15fb2 fixed grammar mistake 4 gadi atpakaļ
tests ecbdaff9ba planes and tests 4 gadi atpakaļ
utils 352b738398 matrix stack and tests 4 gadi atpakaļ
Main.cpp ecbdaff9ba planes and tests 4 gadi atpakaļ
meson.build ecbdaff9ba planes and tests 4 gadi atpakaļ