Add new chemicals (#5168)

Adds new drugs:
-Red Nightshade: a drug that induce a berserk-like status, you see only red, can smash windows, stuns go away slower and etc
-Paxazide: a medicine that induces pacifism on the target, like the mutation
-Spectrocybin: a hallucinogenic that has a small chance of giving a glipse of the other hidden to mere mortals, can be found in a mushroom variety

Adds a new secret chem:
-Bottled Lightning: causes a tesla zap when in contact with someone's blood or when splashed on the ground

Also removes some broken/unused plants.

code/game/objects/items/weapons/stunbaton.dm

@@ -114,7 +114,7 @@
 	var/stun = stunforce
 	var/mob/living/L = M
 
-	if(user.disabilities & PACIFIST)
+	if(user.is_pacified())
 		to_chat(user, "<span class='notice'>You don't want to risk hurting [M]!</span>")
 		return 0
 

code/game/objects/random/random.dm

@@ -193,6 +193,9 @@
 		/obj/item/weapon/reagent_containers/food/snacks/grown/mushroom/libertycap = 2,
 		/obj/item/weapon/reagent_containers/food/snacks/grown/ambrosiavulgaris = 2,
 		/obj/item/weapon/reagent_containers/food/snacks/grown/ambrosiadeus = 1,
+		/obj/item/weapon/reagent_containers/food/snacks/grown/mushroom/reishi = 1,
+		/obj/item/weapon/reagent_containers/food/snacks/grown/mushroom/destroyingangel = 1,
+		/obj/item/weapon/reagent_containers/food/snacks/grown/mushroom/ghostmushroom = 0.5,
 		/obj/item/seeds/ambrosiavulgarisseed = 2,
 		/obj/item/seeds/ambrosiadeusseed = 1,
 		/obj/item/clothing/mask/gas/voice = 1,

code/game/objects/structures/window.dm

@@ -184,7 +184,7 @@
 
 		if (istype(usr,/mob/living/carbon/human))
 			var/mob/living/carbon/human/H = usr
-			if(H.species.can_shred(H))
+			if(H.species.can_shred(H) || (H.is_berserk()))
 				attack_generic(H,25)
 				return