Support quality parameter in rendering.draw_text and higher draw_sprite render layer

[ljdp]

Using the quality parameter in an item tag, like [item=iron-plate,quality=rare] doesn't work with rendering.draw_text. It does work in chat though. It would be great rendering did support the quality param, as I'm rendering auxilary machine information when alt-mode is on and some items have higher quality.

Also I can't use rendering.draw_sprite to draw the quality icon on top in my situation, as I'm rendering a rectangle as a background element, there's no render layer that will let me draw the sprite above the rectangle.