Replaced old GetExtension() function
Make IsFileExtension() public to the API

Moved to custom example, now raylib only supports simulated VR
rendering.
Oculus code was too device dependant... waiting for OpenXR.

Supports line thickness

It seems Sleep() behaves weird on my computer, disabled by default
returning to the busy wait loop... also re-implemented DrawFPS() to
avoid frame blitting...

- SetWindowPosition(int x, int y);
- SetWindowMonitor(int monitor);

Working in modules configuration flags...

Every part is a resource itself, they are loaded in an array

Also reviewed issue with stdbool when compiling with clang

Useful to set number of repeats for a music, needs to be tested...

Moved to own repo at https://github.com/raysan5/raylib-lua

Only DESKTOP platforms (Windows, Linus, OSX)

Now it uses CharInfo data, this way, it's better aligned with the future
RRES file format data layout for sprite font characters.

Preparing for next version... still some work left... :P