LAZY LIST LOADING FOR /ATOM/MOVABLE & /TURF/UNSIMULATED/MINERAL
requested to merge pull/13065/lazy-lists-which-should-have-been-done-by-lazy-coders into Bleeding-Edge
Created by: DrCelt
Will fix #13057 (closed) - proving without a doubt this was not a snowmap issue but rather an atom locking & mine turfs issue
Fixes crash from about a week ago that was caused by this.
"Ported" (macros copypasta'd) from https://github.com/tgstation/tgstation/pull/22059 and https://github.com/tgstation/tgstation/pull/21245