Big Graphics update

Separated LightManager
Added Sprite class
Added View class
Camera is no longer a SceneNode
Fixed Material not invalidating programs
Renamed CameraPosition uniform to EyePosition
Renamed VisibilityTest to FrustumCull


Former-commit-id: ff7fbe4d9b31a3c269baab0b48c6faa347a12161

include/Nazara/Renderer/ShaderProgramManagerParams.hpp

@@ -30,6 +30,13 @@ struct NzShaderProgramManagerParams
 		bool specularMapping;
 	};
 
+	struct Sprite
+	{
+		bool alphaMapping;
+		bool alphaTest;
+		bool diffuseMapping;
+	};
+
 	nzShaderTarget target;
 	nzUInt32 flags;
 
@@ -37,6 +44,7 @@ struct NzShaderProgramManagerParams
 	{
 		FullscreenQuad fullscreenQuad;
 		Model model;
+		Sprite sprite;
 	};
 };