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/reagents/reagents/drugs.dm

@@ -232,6 +232,11 @@
 	high_message_list = list("Everything feels a bit more steady.", "Your mind feels stable.")
 	sober_message_list = list("You feel a little tired.", "You feel a little more listless...")
 
+/datum/reagent/drugs/citalopram/affect_blood(var/mob/living/carbon/M, var/alien, var/removed)
+	..()
+
+	M.fear = max((M.fear - 3),0)
+
 /datum/reagent/drugs/paroxetine
 	name = "Paroxetine"
 	id = "paroxetine"
@@ -243,6 +248,8 @@
 
 /datum/reagent/drugs/paroxetine/affect_blood(mob/living/carbon/M, var/alien, var/removed)
 	..()
+
+	M.fear = max((M.fear - 6),0)
 	if(prob(5) && prob_proc == TRUE)
 		to_chat(M, "<span class='warning'>Everything feels out of control...</span>")
 		M.hallucination += 200