Splitted into:
UpdateCamera()             // Update only camera
UpdateCameraPlayer()   // Update camera and player position

Immediate Mode GUI (IMGUI)

- Trying to implement rlglUnproject() - NOT WORKING
- Tested GLEW alternatives: glad and glLoadGen - NOT WORKING

Useful to enable additive blend mode for particles

Requires raymath as standalone and GLEW

...shader loading security check

Added window drop files support

Now gestures system can be used as standalone module

Camera system can be used as standalone module

Now audio module can be used as standalone module

Shader functionality owns to rlgl, not core module

Added:
- LoadImageRaw()
- ImageCopy()
Renamed:
- GetPixelData() -> GetImageData()