HUD-Texture renders.

HUD-Texture renders and the whole screen is black.

Still TODO:

- Will have to sort out alpha
- Clean up

refs #472 @5h

Pioneers.cabal

@@ -37,5 +37,6 @@ executable Pioneers
                    linear >=1.3.1 && <1.4,
                    lens >=3.10.1 && <3.11,
                    SDL2 >= 0.1.0,
-                   time >=1.4.0 && <1.5
+                   time >=1.4.0 && <1.5,
+                   GLUtil >= 0.7