Three More Elzu Horns (shiptest-ss13#3476)

## About The Pull Request

Adds three more options for Elzuose horns. Cervid, Prong, and Brow.

Images:

![image](https://github.com/user-attachments/assets/24f98d74-f64b-4b8d-8cab-9eb878c30646)

![image](https://github.com/user-attachments/assets/8e52c0ae-e7ee-4d34-82cd-35401a9dcae7)

![image](https://github.com/user-attachments/assets/5f1dfeab-7683-4055-8e1c-895b12dce505)

![image](https://github.com/user-attachments/assets/3008c58f-6022-4c4f-b840-7a3088dd8b6d)

## Why It's Good For The Game

More customization options for the limited list of existing Elzuose
horns. Must be good :P

## Changelog

:cl:
add: Three new Elzuose horn types. Cervid, Prong, and Brow
/:cl:

code/modules/mob/dead/new_player/sprite_accessories/elzuose.dm

@@ -37,6 +37,18 @@
 	name = "Sharp"
 	icon_state = "sharp"
 
+/datum/sprite_accessory/elzu_horns/cervid
+	name = "Cervid"
+	icon_state = "cervid"
+
+/datum/sprite_accessory/elzu_horns/prong
+	name = "Prong"
+	icon_state = "prong"
+
+/datum/sprite_accessory/elzu_horns/brow
+	name = "Brow"
+	icon_state = "brow"
+
 //Start tails
 
 /datum/sprite_accessory/tails/elzu