Adds Sprites for Some Armalis+Vox Gear & Species-fitting Inhand Icons, etc.

Adds sprites for all Vox & Armalis earwear
Adds sprites for Armalis default backpack, nitrogen tank (non-'emergency' back & belt) all breathmask variations

Fixes an issue where Vox Armalis wouldn't be rendered with the proper in-hand icons for their massive noise cannons.
Fixes an issue where you couldn't species-fit earwear.
Fixes an issue where Vox Armalis couldn't wear the 'Vox' breath mask.

code/game/objects/items/devices/radio/headset.dm

@@ -4,6 +4,10 @@
 	var/radio_desc = ""
 	icon_state = "headset"
 	item_state = "headset"
+	sprite_sheets = list(
+		"Vox" = 'icons/mob/species/vox/ears.dmi',
+		"Vox Armalis" = 'icons/mob/species/armalis/ears.dmi'
+		) //We read you loud and skree-er.
 	materials = list(MAT_METAL=75)
 	subspace_transmission = TRUE
 	canhear_range = 0 // can't hear headsets from very far away

code/game/objects/items/weapons/storage/backpack.dm

@@ -19,8 +19,9 @@
 	burntime = 20
 	sprite_sheets = list(
 		"Vox" = 'icons/mob/species/vox/back.dmi',
+		"Vox Armalis" = 'icons/mob/species/armalis/back.dmi',
 		"Grey" = 'icons/mob/species/grey/back.dmi'
-		)
+		) //For Armalis anything but this and the nitrogen tank will use the default backpack icon.
 
 /obj/item/storage/backpack/attackby(obj/item/W as obj, mob/user as mob, params)
 	playsound(src.loc, "rustle", 50, 1, -5)

code/game/objects/items/weapons/tanks/tank_types.dm

@@ -189,7 +189,7 @@ obj/item/tank/emergency_oxygen/double/empty/New()
 	desc = "A tank of nitrogen."
 	icon_state = "oxygen_fr"
 	distribute_pressure = ONE_ATMOSPHERE*O2STANDARD
-
+	sprite_sheets = list("Vox Armalis" = 'icons/mob/species/armalis/back.dmi') //Do it for Big Bird.
 
 /obj/item/tank/nitrogen/New()
 	..()
@@ -206,6 +206,7 @@ obj/item/tank/emergency_oxygen/double/empty/New()
 	desc = "A high-tech nitrogen tank designed specifically for Vox."
 	icon_state = "emergency_vox"
 	volume = 25
+	sprite_sheets = list("Vox Armalis" = 'icons/mob/species/armalis/belt.dmi') //Do it for Big Bird.
 
 /obj/item/tank/emergency_oxygen/vox/New()
 	..()