Added support for billboards (rendertechniques support is coming) -
Doesn't support lighting well for now
Added support for vertex coloring
Added AUTO_TEXCOORDS parameter support to PhongLighting UberShader
Removed unused flag FLAG_FLIP_UVS
More to come ...
Former-commit-id: b408c80e8805a8bfebe9fcdf3a3f954116fbfe96
-Added GRAPHICS_MAX_LIGHTPERPASS macro
-Added glGetActiveUniform OpenGL function
-Added (Uber)ShaderLibrary
-Added (Uber)ShaderName parameter to models
-Changed uniform system
-Fixed Node copying
-Moved Material class to Graphics module
-Optimized lights
-Remade Shader class
-Renamed Node::Invalidate to Node::InvalidateNode
-Renamed ShaderProgram to Shader
Former-commit-id: 15f0cad52969e91a2442e7d750ba2dc412f3549d