Examples and tutorials

[CXCubeHD]

Please add example docs. These help for beginners (like me) to get in touch with this library. We need more accessible examples like:

• (All the existing Tests)
• Input (WASD, Click and ect...)
• FPS example
• ...

[nxrighthere]

Currently, the project is not oriented towards beginners because it's in the development stage and not ready for production.