Adds hidable backpack
Adds smugger packs to mining room, replaces booby-prize beer keg.
Adds to uplink_item.dm
Updated code, latest sprites.
Fixes item path error
Smuggler pack can now fit in backpacks itself
Fixes some sprite issues
Merge branch 'hidey' of https://github.com/Cheridan/-tg-station into hidey
Merge pull request #4995 from Cheridan/hidey

Smuggler Satchels