Vox-compatibility for Most Suits, Fixes Reactive Armour Icon Update Bug

Also adds hiding tails by-species. Updates captain space-suit helmet hair-hiding code.
Fixes a bug where Reactive Armour's sprite wouldn't update when you turned it on or off.
Adds species-fitting for clothing accessories.
Adds the ability to open and close the Clown Officer and Soldier coats.

Adds Vox sprites for the following suits and accessories:
Unathi robe, unathi mantle, all ERT armour (not the spacesuits), armour vest, reflective armour vest,
Security armour vest, bulletproof armour vest, Detective armour vest, blueshield armour vest, combat armour vest,
laser tag vests, ian shirt, suspenders, waistcoat, vest, first responder jacket, bomber jacket, security bomber jacket,
black suit jacket, blue suit jacket, purple suit jacket, IAA jacket, NT Rep jacket, forensics jackets, overalls,
captain's carapace, Blueshield coat, trenchcoats, pirate and old pirate coats, HoS coat, HoS trenchcoat, Warden's jackets,
leather jacket, all military jackets, all ponchos, hazard vest, brigphys vest, reactive armour, riot/swat armour,
heavy armour, thunderdome armour, all knight armour, all bombsuits, regular and atmos firesuits, all biosuits, webbing,
clown officer coat, clown soldier coat.

code/modules/customitems/item_defines.dm

@@ -212,6 +212,8 @@
 	desc = "A labcoat with a few markings denoting it as the labcoat of roboticist."
 	icon = 'icons/obj/custom_items.dmi'
 	icon_state = "aeneasrinil_open"
+	species_fit = null
+	sprite_sheets = null
 
 /obj/item/clothing/suit/jacket/fluff/kidosvest // Anxipal: Kido Qasteth
 	name = "Kido's Vest"
@@ -222,6 +224,8 @@
 	ignore_suitadjust = 1
 	action_button_name = null
 	adjust_flavour = null
+	species_fit = null
+	sprite_sheets = null
 
 /obj/item/clothing/suit/fluff/kluys // Kluys: Cripty Pandaen
 	name = "Nano Fibre Jacket"
@@ -259,6 +263,8 @@
 	desc = "A suit that protects against minor chemical spills. Has a red stripe on the shoulders and rolled up sleeves."
 	icon = 'icons/obj/custom_items.dmi'
 	icon_state = "labcoat_red_open"
+	species_fit = null
+	sprite_sheets = null
 
 /obj/item/clothing/suit/fluff/stobarico_greatcoat // Stobarico: F.U.R.R.Y
 	name = "\improper F.U.R.R.Y's Nanotrasen Greatcoat"
@@ -333,6 +339,8 @@
 	ignore_suitadjust = 1
 	action_button_name = null
 	adjust_flavour = null
+	species_fit = null
+	sprite_sheets = null
 
 /obj/item/clothing/under/fluff/fox
 	name = "Aeronautics Jumpsuit"
@@ -440,6 +448,8 @@
 	icon = 'icons/obj/clothing/ties.dmi'
 	icon_state = "vest_black"
 	item_state = "vest_black"
+	species_fit = null
+	sprite_sheets = null
 
 /obj/item/clothing/under/pants/fluff/combat
 	name = "combat pants"
@@ -455,6 +465,8 @@
 	item_state = "elliot_windbreaker_open"
 	adjust_flavour = "unzip"
 	suit_adjusted = 1
+	species_fit = null
+	sprite_sheets = null
 
 /obj/item/device/fluff/tattoo_gun/elliot_cybernetic_tat
 	desc = "A cheap plastic tattoo application pen.<br>This one seems heavily used."