Small tweaks and fixes

Fixed the ID computer being usable by non-humans (resulting in mice and other mobs stealing IDs)
Robots are no longer pretending to drink stuff, now they actually do it. For now it just removes reagents from the container, and doesn't interact with the borgs in any way, but it gives service borgs a way to remove stuff from their shaker very quickly.
Service borgs receive a d6 and d20 (named probability cube and probability icosahedron, respectively)
Fixed dice becoming invisible if their name was changed (like with a hand labeller)