Refactored the attack proc signature.
Added signals and components for the attack proc.
Added signals and components for the attackby proc.
Adjusted some leftover attackby procs signatures.
Added grep test to ensure people don't keep adding attack/attackby procs
with the wrong signature.
Refactored hitby to be in line with TG's version.
Refactored item weight defines to a more clear naming scheme, also in
line with TG's version.
Refactored how the movement bumps are handled, ported signals to handle
them, in preparation for the movement update.
Fixed disposal hit bouncing the hitting atom on the wall.
Items do not push other items anymore if they are tiny.
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
Old PR was stale and had many issues. Redid some of the eye blinding and camera stuff with making it a random chance to do so, aswell as addressing original PR concerns
