Icebox Cytology Lab (tgstation#84697)

## About The Pull Request

Adds the Cytology lab to Icebox. Cytology was literally unplayable
before - without a roundstart vat you literally can't do Cytology due to
tgstation#84235 . Icebox lacked a vat,
a dedicated pen and a lot of stuff, so the icebox lab was added. In line
with the other cytology lab, this one has a few unique advantage over
other maps; namely, access to the icebox outside, a corgi (easy recipe
for new cytologists) and a dead rat (exceptionally useful).

Additionally, also adds a soy seed package in Delta's Cytology, to go
with their hydroponics tray. In this map rather than a knife for
butchering monkeys they instead get the hydroponics tray and soy, for an
alternative source of protein.


![image](https://github.com/tgstation/tgstation/assets/84548101/3ea9a0f3-b97b-4324-9b0d-da18daf925e9)

![image](https://github.com/tgstation/tgstation/assets/84548101/3b7230e8-9e80-472e-bcda-210ab38cf7fd)

![image](https://github.com/tgstation/tgstation/assets/84548101/37ecd1fc-ce0d-4b62-a544-f4df1294c4e1)

With Icebox getting its own lab with a survival knife and Delta getting
a source of protein via soy this PR makes
tgstation#84688 redundant. The lack of
knife in the Birdshot Cyto standing as a balance for it having several
cell lines available inside of the lab.

## Why It's Good For The Game

Cytology is playable on Box again. Delta gets an extra source of protein
for Cytology.

## Changelog


:cl:
add: Cytology Lab has been added to Icebox
add: Delta now has soy seeds on the Cytology Lab
fix: Cytology is playable again on Icebox
/:cl:

_maps/map_files/Deltastation/DeltaStation2.dmm

@@ -49217,15 +49217,19 @@
 "mna" = (
 /obj/machinery/firealarm/directional/south,
 /obj/structure/table/reinforced,
-/obj/item/storage/box/monkeycubes{
-	pixel_y = 3
-	},
-/obj/item/storage/box/monkeycubes,
 /obj/effect/turf_decal/stripes/line,
 /obj/machinery/atmospherics/pipe/smart/manifold4w/scrubbers/hidden/layer2,
 /obj/machinery/atmospherics/pipe/smart/manifold4w/supply/hidden/layer4,
 /obj/structure/cable,
 /obj/effect/turf_decal/tile/neutral/half/contrasted,
+/obj/item/storage/box/monkeycubes{
+	pixel_y = 10;
+	pixel_x = 1
+	},
+/obj/item/storage/box/monkeycubes{
+	pixel_y = 3;
+	pixel_x = -13
+	},
 /turf/open/floor/iron,
 /area/station/science/xenobiology)
 "mnl" = (
@@ -53146,6 +53150,10 @@
 /obj/effect/turf_decal/tile/neutral/anticorner/contrasted{
 	dir = 1
 	},
+/obj/item/seeds/soya{
+	pixel_x = 11;
+	pixel_y = -2
+	},
 /turf/open/floor/iron,
 /area/station/science/xenobiology)
 "nnv" = (