Refactors anti-magic into a component

code/modules/reagents/chemistry/reagents/other_reagents.dm

@@ -190,6 +190,18 @@
 	glass_name = "glass of holy water"
 	glass_desc = "A glass of holy water."
 
+/datum/reagent/water/holywater/on_mob_add(mob/M)
+	..()
+	if(isliving(M))
+		var/mob/living/L = M
+		L.add_trait(TRAIT_HOLY, id)
+
+/datum/reagent/water/holywater/on_mob_delete(mob/M)
+	if(isliving(M))
+		var/mob/living/L = M
+		L.remove_trait(TRAIT_HOLY, id)
+	..()
+
 /datum/reagent/water/holywater/reaction_mob(mob/living/M, method=TOUCH, reac_volume)
 	if(is_servant_of_ratvar(M))
 		to_chat(M, "<span class='userdanger'>A darkness begins to spread its unholy tendrils through your mind, purging the Justiciar's influence!</span>")
@@ -1778,7 +1790,7 @@
 	id = "synthpax"
 	description = "A colorless liquid that suppresses violence on the subjects. Cheaper to synthetize, but wears out faster than normal Pax."
 	metabolization_rate = 1.5 * REAGENTS_METABOLISM
-  
+
 /datum/reagent/bz_metabolites
 	name = "BZ metabolites"
 	id = "bz_metabolites"