Add a unit test to check that maploaded simple/basic mobs are in an environment they can survive in. (#82180)

## About The Pull Request
I've recently noticed that the maploaded penguins from the snowdin away
mission were dying from unsafe atmos/temperature. This sparked the idea
of making a (focus only) unit test that would prevent this sort of
issues from happening.

This PR also implements the usage of the `atmos_requirements` and
`body_temp_sensitive` elements for simple animals too, cutting down the
copypaste.

## Why It's Good For The Game
More unit tests to make sure things are done correctly.

## Changelog

🆑
fix: Made sure that mapped critters (i.e. penguins on the snow cabin
away mission) can survive in the environment they're spawned in.
/🆑

code/modules/mob/living/basic/vermin/cockroach.dm

@@ -40,7 +40,6 @@
 	var/static/list/roach_drops = list(/obj/effect/decal/cleanable/insectguts)
 	AddElement(/datum/element/death_drops, roach_drops)
 	AddElement(/datum/element/swabable, cockroach_cell_line, CELL_VIRUS_TABLE_GENERIC_MOB, 1, 7)
-	AddElement(/datum/element/basic_body_temp_sensitive, 270, INFINITY)
 	AddComponent( \
 		/datum/component/squashable, \
 		squash_chance = 50, \

code/modules/mob/living/basic/vermin/frog.dm

@@ -52,13 +52,7 @@
 	ADD_TRAIT(src, TRAIT_VENTCRAWLER_ALWAYS, INNATE_TRAIT)
 
 	if(prob(1))
-		name = "rare frog"
-		desc = "They seem a little smug."
-		icon_state = "rare_frog"
-		icon_living = "rare_frog"
-		icon_dead = "rare_frog_dead"
-		butcher_results = list(/obj/item/food/nugget = 5)
-		poison_type = /datum/reagent/drug/mushroomhallucinogen
+		make_rare()
 
 	var/static/list/loc_connections = list(
 		COMSIG_ATOM_ENTERED = PROC_REF(on_entered),
@@ -68,6 +62,15 @@
 	AddElement(/datum/element/ai_retaliate)
 	AddElement(/datum/element/swabable, CELL_LINE_TABLE_FROG, CELL_VIRUS_TABLE_GENERIC_MOB, 1, 5)
 
+/mob/living/basic/frog/proc/make_rare()
+	name = "rare frog"
+	desc = "They seem a little smug."
+	icon_state = "rare_[icon_state]"
+	icon_living = "rare_[icon_living]"
+	icon_dead = "rare_[icon_dead]"
+	butcher_results = list(/obj/item/food/nugget = 5)
+	poison_type = /datum/reagent/drug/mushroomhallucinogen
+
 /mob/living/basic/frog/proc/on_entered(datum/source, AM as mob|obj)
 	SIGNAL_HANDLER
 	if(!stat && isliving(AM))
@@ -75,6 +78,17 @@
 		if(L.mob_size > MOB_SIZE_TINY)
 			playsound(src, stepped_sound, 50, TRUE)
 
+/mob/living/basic/frog/icemoon_facility
+	name = "Peter Jr."
+	desc = "They seem a little cold."
+	minimum_survivable_temperature = ICEBOX_MIN_TEMPERATURE
+	habitable_atmos = null
+	gold_core_spawnable = NO_SPAWN
+
+/mob/living/basic/frog/icemoon_facility/make_rare()
+	. = ..()
+	name = "Peter Sr." //make him senior.
+
 /mob/living/basic/frog/frog_suicide
 	name = "suicide frog"
 	desc = "Driven by sheer will."

code/modules/mob/living/basic/vermin/space_bat.dm

@@ -53,3 +53,10 @@
 		/datum/ai_planning_subtree/target_retaliate,
 		/datum/ai_planning_subtree/basic_melee_attack_subtree,
 	)
+
+///Subtype used in the caves away mission
+/mob/living/basic/bat/away_caves
+	name = "cave bat"
+	desc = "A rare breed of bat which roosts deep in caves."
+	minimum_survivable_temperature = 0
+	gold_core_spawnable = NO_SPAWN