[Feature] [Duke 3D/SW] Keys display on minimal HUD

[NightFright2k19]

Following this feature request in the ZDoom forums

The minimal statusbar for Duke3D shows three vital stats: health, ammo, inventory. Seeing keycards as well would be helpful as well, especially since sometimes keycard colors cannot be determined before picking them up and the pickup message remains vague about it.

Maybe there could be a menu option to show keycards you picked up also on this minimal statusbar. I have provided a custom image for this purpose (in the forum thread linked above) that is taken directly from the Duke3D statusbar. Shadow Warrior could simply re-use the empty frame from the ammo display.

Side note:
Doesn't make sense for Redneck Rampage since all keys look the same there, and in Blood there is a key display on the minimal HUD afaik.