[MERGED PR] Gives medical a prepared belt.

[Retrino]

in regards to having a medkit out to signal to someone you plan to heal them, i think having the med scanner out provides basically the same effect (also ddaily reminder that menders should get inhands so its more obvious when someone is going to heal you). as someone who plays with a pretty small screen, the medkit and scanner are basically indifferent, with both being white and red color combos

keeping the medkit with the epi auto and pain killer would be good, maybe throw in a couple refills as well? seems like a decent way to introduce new docs to them, since the nanomed itself has a ton of shit in it and can be overwhelming 

overall dont see many downsides w this, it just cuts out time of transferring medkit items to the belt. roboticist had this done recently and it was a great qol buff. swapping out an item like a syringe for a hypo is a matter of seconds(but having it in there by default would be good), as opposed to having to transfer each wanted item into the belt and replacing meds in the box