Rename Bumped to CollidedWith

In light of the change of Bump to Collide, this should also be done
as it will make it less confusing for devs in the future

I also ended up changing a bunch of the code in the CollidedWith procs,
things that were assuming types, doing bad loc changes and so forth

code/modules/mob/living/living.dm

@@ -99,7 +99,7 @@
 		if(PushAM(AM))
 			return
 
-/mob/living/Bumped(atom/movable/AM)
+/mob/living/CollidedWith(atom/movable/AM)
 	..()
 	last_bumped = world.time
 

code/modules/mob/living/simple_animal/guardian/types/fire.dm

@@ -27,7 +27,7 @@
 	..()
 	collision_ignite(AM)
 
-/mob/living/simple_animal/hostile/guardian/fire/Bumped(AM as mob|obj)
+/mob/living/simple_animal/hostile/guardian/fire/CollidedWith(atom/movable/AM)
 	..()
 	collision_ignite(AM)
 

code/modules/mob/living/simple_animal/hostile/megafauna/colossus.dm

@@ -437,7 +437,7 @@ Difficulty: Very Hard
 	playsound(user, activation_sound, 100, 1)
 	return TRUE
 
-/obj/machinery/anomalous_crystal/Bumped(atom/AM as mob|obj)
+/obj/machinery/anomalous_crystal/CollidedWith(atom/movable/AM)
 	..()
 	if(ismob(AM))
 		ActivationReaction(AM, ACTIVATE_MOB_BUMP)