[PR] changes nanomed access to medlocker access

[stuck_in_void_HELP]

This is going to make it very hard for security to help save suspects and to heal themselves up after getting into a shoot out.

You could call a doctor or send out a medical emergency before or after a shootout. Most can come running at any time

I thought it was a generally agreed upon thing that depending on other departments to do important stuff was bad? There's a reason the kitchen starts with assorted supplies already stocked - it's so they're able to serve food without depending on Botany. 

Same reason why there's a chem dispenser inside medbay on most maps: Sometimes chemistry just won't make medicine, so you make some yourself.