Big UberShader update

-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

include/Nazara/Utility/Node.hpp

@@ -92,7 +92,7 @@ class NAZARA_API NzNode
 
 	protected:
 		void AddChild(NzNode* node) const;
-		virtual void Invalidate();
+		virtual void InvalidateNode();
 		virtual void OnParenting(const NzNode* parent);
 		void RemoveChild(NzNode* node) const;
 		void UpdateDerived() const;