[s] Fixes cursed stomach vomitcrawl CC exploit (#22828)

* Who knew vomit could be useful

* Revert "Who knew vomit could be useful"

This reverts commit c875342.

* Vomitcrawling prevention

* Mapping helpers

Author: Oblisk234

yogstation/code/datums/components/crawl.dm

@@ -447,5 +447,5 @@ GLOBAL_LIST_EMPTY(vomit_spots)
 
 /obj/effect/dummy/crawling/vomit/proc/follow_vomit()
 	var/turf/T = get_turf(currentvomit)
-	if(T)
+	if(T && !(is_centcom_level(T.z)||is_reserved_level(T.z)))
 		forceMove(T)