_HELPERS/unsorted.dm has been sorted (#61882)

bring code up to latest standards, move many procs to named files inside _HELPERS
no idea where to put some of these procs, help is appreciated
made more files to contain some unique code, deleted unsorted.dm, we can rest now

code/controllers/subsystem/atoms.dm

@@ -123,7 +123,7 @@ SUBSYSTEM_DEF(atoms)
 	else
 		SEND_SIGNAL(A,COMSIG_ATOM_AFTER_SUCCESSFUL_INITIALIZE)
 		if(created_atoms && from_template && ispath(the_type, /atom/movable))//we only want to populate the list with movables
-			created_atoms += A.GetAllContents()
+			created_atoms += A.get_all_contents()
 
 	return qdeleted || QDELING(A)
 

code/controllers/subsystem/explosions.dm

@@ -416,7 +416,7 @@ SUBSYSTEM_DEF(explosions)
 			for(var/I in T)
 				var/atom/A = I
 				if (length(A.contents) && !(A.flags_1 & PREVENT_CONTENTS_EXPLOSION_1)) //The atom/contents_explosion() proc returns null if the contents ex_acting has been handled by the atom, and TRUE if it hasn't.
-					items += A.GetAllContents(ignore_flag_1 = PREVENT_CONTENTS_EXPLOSION_1)
+					items += A.get_all_contents(ignore_flag_1 = PREVENT_CONTENTS_EXPLOSION_1)
 			for(var/thing in items)
 				var/atom/movable/movable_thing = thing
 				if(QDELETED(movable_thing))