Make mesh able to carry material informations

- Move OBJ Loader to Utility module, where it belongs
- Change Mesh material informations from a path to a parameterlist
- Improve Mesh code


Former-commit-id: f16f48f8b6399188a09797cec3707ab6726bdbca

include/Nazara/Graphics/Material.hpp

@@ -24,6 +24,7 @@
 #include <Nazara/Renderer/Texture.hpp>
 #include <Nazara/Renderer/TextureSampler.hpp>
 #include <Nazara/Renderer/UberShader.hpp>
+#include <Nazara/Utility/MaterialData.hpp>
 
 namespace Nz
 {
@@ -62,6 +63,8 @@ namespace Nz
 
 			const Shader* Apply(UInt32 shaderFlags = 0, UInt8 textureUnit = 0, UInt8* lastUsedUnit = nullptr) const;
 
+			void BuildFromParameters(const ParameterList& matData, const MaterialParams& matParams = MaterialParams());
+
 			void Enable(RendererParameter renderParameter, bool enable);
 			void EnableAlphaTest(bool alphaTest);
 			void EnableDepthSorting(bool depthSorting);