Texture

[fesoliveira014]

This not necessarily means a manager, but a structure to instantiate, delete and represent textures.

It should follow the same standard for other OpenGL objects:

• No full copy should be allowed
• Copies should come from wrapping, i.e., marking a copy as a non-deletion object

[fesoliveira014]

Still need to add some other texture types, such as cube map, but for now this is done