Glove update

Integrates gloves into click code.  Gloves now have a proc/Touch(atom, proximity) which is called before humans do an attack_hand().  It can also occur when you click on something at range, so be sure to check the proximity flag.

Adds code to make ninja gloves work properly with this and pulls it out of the various attack_hand() procs.

Other suggested uses: secret society rings, magic/cult gloves, weaponized gloves (chemical, electric, needles, etc), powered exosuit hands (for picking up crates), I dunno, there are options