Implements sprite changes on behalf of AmoryBlane

[grifp71]

Made at the request of GM Amory.

• Implements a recoloring of the basic marine jungle gear and a couple desert pattern hats.
• Implements different slightly edited sprites for marine armor.
• Removes heavy armor and light armor from player access on the Golden Arrow (M3-EOD and M3-L) which Amory cleared with Morrow a few days ago. I did not fully remove them in case a GM wants to utilize them, I simply removed them from the marine uniform and medic vendors and removed the M3-EOD armor that spawns on Ready Line Ronald.

More sprite changes on the way I suppose but this is step one. Locally tested and I think this should all be in order but I'm still learning this github thing.

[AndroBetel]

lgtm