Those headers are used for interoping with various popular C++
libraries. For now, those libraries are Eigen, GLM, HandmadeMath,
Raylib, and SFML. Some other ones may be added in the future.
Those are disabled by default, as most projects I would imagine would
not use them. But in case you need any of them for special reasons like
I did, they are there.
Signed-off-by: Slendi <slendi@socopon.com>
