Option to alter texture filter

[devilbuddy]

I'm quite a noob at piston, so I might be totally wrong here.. but I think it's hard coded at the moment:

TEXTURE_MIN_FILTER - LINEAR TEXTURE_MAG_FILTER - LINEAR

(my pixel art gets all blurry :( so I'd like to be able to set it to NEAREST to be able to scale my sprites when drawing..)

[bvssvni]

Opened https://github.com/PistonDevelopers/texture/issues/32.