Graphics/CullingList: Improve culling list

- Now supports box culling
- Removed branch
- Removed complex hash combination and replaced it with a much faster algorithm
- It now supports partial visibility

include/Nazara/Graphics/Enums.hpp

@@ -21,6 +21,7 @@ namespace Nz
 
 	enum class CullTest
 	{
+		Box,
 		NoTest,
 		Sphere,
 		Volume