Added a use delay to medical items

Bruise packs and ointments will now have a delay when using it. Applying medical items on yourself will take considerably longer than having someone else apply it on you.
-Augs, cyborgs, and mechas now have use delays on repairs
-Added a check to do_mob() so you can't 360noscope heal all of your parts at once by quickly switching between zones
-Added a new span class "Success" which is in a pleasing green color.
Reduced use delay for augs from 8 seconds to 6
Merge pull request #427 from Ikarrus/meddelay

Added a use delay to medical items