Added Meshes and Animations (And many more)

Added NzTexture::IsMipmappingSupported
Color::(FromTo)HSV now takes hue and saturation in degrees
Fixed Context::EnsureContext
Fixed COW thread-safety (String, Image, Matrix4)
Fixed Quatenion<T>::operator*(const Vector3<T>&)
Fixed ResourceLoader
Fixed String::Resize with a size of 0
Fixed Texture mipmapping crash
Fixed per-class thread-safety
IndexBuffer and VertexBuffer are now resources
It is now possible to use more than 8 texcoords per shader
Moved all enumerations into separate files (Core/Enums.hpp,
Utility/Enums.hpp, ..)
Removed NzContextParameters::defaultWindow
VertexDeclaration has been rewritten (New interface/COW)

include/Nazara/Utility/SubMesh.hpp

@@ -0,0 +1,42 @@
+// Copyright (C) 2012 Jérôme Leclercq
+// This file is part of the "Nazara Engine".
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_SUBMESH_HPP
+#define NAZARA_SUBMESH_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Utility/Enums.hpp>
+#include <Nazara/Utility/IndexBuffer.hpp>
+#include <Nazara/Utility/Resource.hpp>
+#include <Nazara/Utility/VertexBuffer.hpp>
+#include <Nazara/Utility/VertexDeclaration.hpp>
+
+class NzMesh;
+
+class NAZARA_API NzSubMesh : public NzResource
+{
+	friend class NzMesh;
+
+	public:
+		NzSubMesh(const NzMesh* parent);
+		virtual ~NzSubMesh();
+
+		void Animate(unsigned int frameA, unsigned int frameB, float interpolation);
+
+		virtual const NzIndexBuffer* GetIndexBuffer() const = 0;
+		const NzMesh* GetParent() const;
+		virtual nzPrimitiveType GetPrimitiveType() const = 0;
+		virtual const NzVertexBuffer* GetVertexBuffer() const = 0;
+		virtual const NzVertexDeclaration* GetVertexDeclaration() const = 0;
+		unsigned int GetVertexCount() const;
+
+	protected:
+		virtual void AnimateImpl(unsigned int frameA, unsigned int frameB, float interpolation) = 0;
+
+		const NzMesh* m_parent;
+};
+
+#endif // NAZARA_SUBMESH_HPP