More colors for hud_gameclock_style

[ices-dev]

Would be nice if we could get other color than red.

[Matrix-QW]

I think this would be helpful. When armor/health numbers are low and turn red I used to get confused. Now I use a console font that has a different color for the lower chars (in the charset.png), making gameclock nicely visible under any circumstance. Ammo numbers are also different wich make the whole hud easy to read. Maybe adding more colors to ammo numbers would be helpful too.