Supply texture target to reloadTexture

[triplepointfive]

I'd like to handle cubemap textures, but reloadTexture function is supposed to be applied only for Texture2D targets. Can we provide to it one more argument with a type TwoDimensionalTextureTarget t, so it will be more generalized?

[acowley]

I'd rather not break existing users of reloadTexture. Is TexInfo enough for working with cubemaps? If not, perhaps we could replace that concrete argument with a type subject to a class constraint. That way, we could have something like a TexInfoCube type from which we could pull out the right texture target.