Adds new sprite option for goliath tentacle-style hair (#3007)

## About The Pull Request
Adds a new hairstyle to the game: "tentahair", which looks like a bunch
of tentacles coming out of a character's head/back.
## Why It's Good For The Game
More character options! (why have I not seen any anthro goliaths yet.)
## Proof Of Testing
<details>
<summary>Screenshots/Videos</summary>


![image](https://github.com/user-attachments/assets/363629f1-9971-4b67-95dd-1230115bdcdf)

![image](https://github.com/user-attachments/assets/fe198e8a-66a4-4461-a792-07095e6dddfb)

![image](https://github.com/user-attachments/assets/1eb4b5e0-555d-410e-aa8b-3c75cc283165)

![image](https://github.com/user-attachments/assets/86ca7d03-3e57-49ae-8963-48cbb90ad070)


</details>

## Changelog
🆑
add: Added a new hairstyle based off of goliath tentacles
/🆑

---------

Co-authored-by: Waterpig <49160555+Majkl-J@users.noreply.github.com>

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

@@ -192,6 +192,12 @@
 	icon = 'modular_zubbers/icons/mob/species/human/humanface.dmi'
 	recommended_species = list(SPECIES_PODPERSON, SPECIES_PODPERSON_WEAK)
 
+/datum/sprite_accessory/hair/tentahair
+	name = "Tentacle hair"
+	icon_state = "ashwalker_goliath_hair"
+	icon = 'modular_zubbers/icons/mob/species/human/humanface.dmi'
+	recommended_species = list(SPECIES_LIZARD_ASH)
+
 /datum/sprite_accessory/socks/warm_thigh
 	name = "Warm Thigh Highs"
 	icon_state = "warm_thigh"