PoI Stage 0.5

Doing this in smaller bits

- New random sif mob selector, peaceful animals
- Drone lootpile (basic placeholder loot right now until we figure out how to give them proper drone loot)
- New random spider mob selector, nurse spider and nurse hat spider (hat spider has 10 more health points and is a rare chance to spawn, woo)
- New spacesuit random spawn, medical space suits
- New Random Shotgun spawn
- New random gun spawns
- Fixed icon for random medicine spawn
- Fixed broken icon for 44 magazines
- Fixed Ice Cave dungeon walls being called 'steel'
- Added new Crystal type, to avoid the SM style crystal from spawning in crystal PoIs

code/modules/mob/living/simple_animal/animals/giant_spider.dm

@@ -82,6 +82,15 @@ Nurse Family
 	var/atom/cocoon_target
 	var/egg_inject_chance = 5
 
+/mob/living/simple_animal/hostile/giant_spider/nurse/hat
+	desc = "Furry and beige, it makes you shudder to look at it. This one has brilliant green eyes and a tiny nurse hat"
+	icon_state = "nursemed"
+	icon_living = "nursemed"
+	icon_dead = "nursemed_dead"
+
+	maxHealth = 50
+	health = 50
+
 /mob/living/simple_animal/hostile/giant_spider/nurse/queen
 	desc = "Absolutely gigantic, this creature is horror itself."
 	icon = 'icons/mob/64x64.dmi'