Fixes the Independent Litieguai organ freezer (#2098)

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## About The Pull Request
TLDR - The Litieguai's provided organs now decay as you would expect,
pausing when in the shut freezer crate.

As to the nature of the bug, just in case there's a more generalized
solution anyone could suggest:
Freezer crates work by toggling the decay state of organs, whenever the
crate is opened or closed, as well as when the crate is initialized- in
order to freeze any organs that are inside when created.

However, currently the organs are just dropped onto the same tile as the
crate, and picked up on a 0 second timer (so after the freeze toggle),
which leads to the organs having an inverted decay state- only decaying
when the box is closed, and stopping their decay when the box is opened
and even when picked up or moved to the floor.

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## Why It's Good For The Game
Fix bugs! Also turn an interesting snowflake crate into a proper
subtype, perhaps encouraging it to be used elsewhere.
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## Changelog

:cl:
fix: Independent Litieguai's organ freezer now properly freezes the
provided organs
/:cl:

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---------

Co-authored-by: linkylink21 <duncanlam@outlook.com>

_maps/shuttles/shiptest/independent_litieguai.dmm

@@ -225,21 +225,8 @@
 "fn" = (
 /obj/machinery/firealarm/directional/west,
 /obj/machinery/airalarm/directional/south,
-/obj/structure/closet/crate/freezer/surplus_limbs{
-	name = "organ freezer"
-	},
-/obj/item/organ/stomach,
-/obj/item/organ/stomach,
-/obj/item/organ/lungs,
-/obj/item/organ/liver,
-/obj/item/organ/liver,
-/obj/item/organ/eyes,
-/obj/item/organ/eyes,
-/obj/item/organ/heart,
-/obj/item/organ/heart,
-/obj/item/organ/ears,
-/obj/item/organ/ears,
 /obj/effect/turf_decal/industrial/hatch/red,
+/obj/structure/closet/crate/freezer/surplus_limbs/organs,
 /turf/open/floor/plasteel/tech/techmaint,
 /area/ship/medical)
 "fp" = (

code/game/objects/structures/crates_lockers/crates.dm

@@ -175,6 +175,24 @@
 	new /obj/item/bodypart/leg/left/robot/surplus/vox(src)
 	new /obj/item/bodypart/leg/right/robot/surplus/vox(src)
 
+/obj/structure/closet/crate/freezer/surplus_limbs/organs
+	name = "organ freezer"
+	desc = "A crate containing a variety of spare limbs and organs."
+
+/obj/structure/closet/crate/freezer/surplus_limbs/organs/PopulateContents()
+	. = ..()
+	new /obj/item/organ/stomach(src)
+	new /obj/item/organ/stomach(src)
+	new /obj/item/organ/lungs(src)
+	new /obj/item/organ/liver(src)
+	new /obj/item/organ/liver(src)
+	new /obj/item/organ/eyes(src)
+	new /obj/item/organ/eyes(src)
+	new /obj/item/organ/heart(src)
+	new /obj/item/organ/heart(src)
+	new /obj/item/organ/ears(src)
+	new /obj/item/organ/ears(src)
+
 /obj/structure/closet/crate/radiation
 	desc = "A crate with a radiation sign on it."
 	name = "radiation crate"