High Vis Ammo Packs and Med Kits V2

Extends V1 to include Halloween med packs in preparation for Scream Fortress. Includes a folder version for ease of colour replacing. Please do not comment on the colour of the outline, this is incredibly subjective to the user.

V3 will aim to include lunchbox pickup outlines (notably, the heavy's sandvich, buffalo steak etc) and the birthday med packs, but unfortunately, Maya makes this process horribly drawn out, so I'll just release this for the time being.