Useful to enable additive blend mode for particles

Requires raymath as standalone and GLEW

Shader functionality owns to rlgl, not core module

- Camera system moved to a separate module [camera.c]
- WIP: Added customization functions for camera controls
- Added custom shaders support on batch drawing
- Complete redesign of textures module to support multiple texture
formats (compressed and uncompressed)

Moved functions: LoadShader(), UnloadShader()
Add support for PVR textures compressed/uncompressed
WIP: Detect available extensions for compressed textures

Support multiple texture formats (uncompressed and compressed)
Postprocessing shaders support
Model struct redefined and improved
Extended loading functions for Textures and Models
Simplified functions: DrawPlane(), DrawQuad()
Deleted functions: DrawPlaneEx(), DrawGizmoEx()
Now Text module only depends on Textures module
Shapes: Reviewed functions to low lines/triangles usage
Removed useless tabs and spaces around code

Corrected GetMouseWheelMove()
Corrected camera system
Reviewed cubicmap resolution (collision detection)
Added QuaternionTransform()
WIP: Raycast system (not working)
WIP: Reviewing axis-angle rotations...

Shader system has been completely redesigned
Added support for multiple texture color modes

Custom shaders for models
Postprocessig on FBO (in progress)
Some useless spaces removed

Corrected some bugs on the way...
Automatically convert textures to POT on RPI and WEB

Added PLATFORM_WEB support (emscripten-webgl)
[audio] Added LoadSoundFromWave()
[textures] Added LoadTextureFromImage() to replace CreateTexture()
Some TraceLogs edited...

View CHANGELOG for description on small fixes and add-ons

This is a huge update. Check CHANGELOG for details

No-parameters functions use the prototype style FunctionName(void);

Set default raylib to use OpenGL 1.1 (compatibility issues on ATI cards)

Check CHANGELOG for a detailed list of changes

View CHANGELOG for a detailed list of changes

Added a Tracing/Log system
Added OGG stream music support (DOESN'T WORK)
Added Compressed textures support
* This update is probably very buggy...

Nearly a complete rework of Models module
Some teaks on multiple functions