Ports some hairstyles from Shiptest (#22324)

## About PR

Ports 4 hairstyles (hair_bun_short3, hair_ponytail_spiky,
hair_ponytail_simple, hair_parted_short) from Shiptest. "hair_bun_loose"
is derived from "hair_ponytail_simple". Colour palette is adjusted to
the modern grayscale colours we use

Ponytails and bun hairstyle was made by thearbiber, credits to them! I
wasn't able to track the author of "hair_parted_short"

This also replaces old sprites of "Ponytail, Spiky" and "Parted, Short"

## Images

<img width="896" height="616" alt="image"
src="https://github.com/user-attachments/assets/565e8b8d-9e9d-4057-a275-654a48c4bb24"
/>


### Asset Licenses
The following assets that **have not** been created by myself are
included in this PR:

| Path | Original Author | License |
| --- | --- | --- |
| icons/mob/human_face/hair.dmi (hair_bun_short3, hair_ponytail_spiky,
hair_ponytail_simple, hair_parted_short) | thearbiber (Shiptest) |
CC-BY-SA 3.0 |

code/modules/mob/abstract/new_player/sprite_accessories.dm

@@ -1231,12 +1231,6 @@ Follow by example and make good judgement based on length which list to include
 	length = 2
 	chatname = "ponytail"
 
-/datum/sprite_accessory/hair/ponytail_spiky
-	name = "Ponytail, Spiky"
-	icon_state = "hair_ponytail_spiky"
-	length = 4
-	chatname = "ponytail"
-
 /datum/sprite_accessory/hair/ponytail_wisp
 	name = "Ponytail, Wisp"
 	icon_state = "hair_ponytail_wisp"
@@ -2020,6 +2014,30 @@ Follow by example and make good judgement based on length which list to include
 	length = 2
 	chatname = "ponytail"
 
+/datum/sprite_accessory/hair/balding/bun_short3
+	name = "Bun, Short 3"
+	icon_state = "hair_bun_short3"
+	length = 2
+	chatname = "hair bun"
+
+/datum/sprite_accessory/hair/balding/bun_loose
+	name = "Bun, Loose"
+	icon_state = "hair_bun_loose"
+	length = 2
+	chatname = "hair bun"
+
+/datum/sprite_accessory/hair/balding/ponytail_simple
+	name = "Ponytail, Simple"
+	icon_state = "hair_ponytail_simple"
+	length = 2
+	chatname = "ponytail"
+
+/datum/sprite_accessory/hair/balding/ponytail_spiky
+	name = "Ponytail, Spiky"
+	icon_state = "hair_ponytail_spiky"
+	length = 4
+	chatname = "ponytail"
+
 /*
 /////////////////////////////////////
 /  =-----------------------------=  /