Fear and Phobias (#16220)

Added a new fear variable and fear overlay. When fear is over 30, you have a chance to make and feel fear related emotes, and your aim gets worse. At fear over 80, you make more emotes and you will sometimes drop your active item.

Added 8 new phobia neutral traits. These traits trigger a build up of fear under certain circumstances. These traits are:

code/modules/projectiles/gun.dm

@@ -658,6 +658,8 @@
 		if(H.species)
 			P.accuracy += H.species.gun_accuracy_mod
 			P.dispersion = max(P.dispersion + H.species.gun_accuracy_dispersion_mod, 0)
+		if(H.fear > 30)
+			P.accuracy -= 35
 
 //does the actual launching of the projectile
 /obj/item/weapon/gun/proc/process_projectile(obj/projectile, mob/user, atom/target, var/target_zone, var/params=null)