Part 1 in the "why my impact wrench no wrench bolt" saga
tl;dr for end users: combitools / impact wrenches now work on everything their non-powered versions do (except mechs and RIGs, tune in next time on dragon ball Z for that)
essentially all this PR does is murder every istype() check possible that could use a helper function instead, most notably many pen checks with ispen(). it also repaths combitools and powerdrills to /obj/item/weapon so they aren't instantly taken out of contention by half of the known attackby() prompts
I already squashed a couple runtimes here and there from the pen changes and it's possible I missed another because pencode is another scourge upon our lives
9c335f6c00