Additional sprites for Vox - Inteq and NGR (#3255)

## About The Pull Request

Added Vox Variations for the HV outfit, the Blood-Red Hazard Vest and
two NGR hard hats. Also resprites the Vox Vanguard Battlecoat to closer
match the current iteration with significant help from
Rylie/Retlaw34/Ryerice.

- Honorable Vanguard Beret
- Honorable Vanguard Battlecoat
- Vanguard Battlecoat
- Leather Satchel
- Blood Red Hazard Vest
- NGR Hard Hat
- NGR Foreman Hard Hat


![image](https://github.com/user-attachments/assets/e301f60c-2a23-4461-be34-e039301f339a)

![image](https://github.com/user-attachments/assets/5494cba3-ab60-4a01-9c28-26c148bf594d)

![image](https://github.com/user-attachments/assets/4857d900-50f9-4f92-b8a3-b9059997b3b0)

![image](https://github.com/user-attachments/assets/b2c6cfa0-318a-415c-80b0-5e051f3fd7ca)
(honestly this satchel looks pretty bad in general but I figured i'd get
it out of the way)

![image](https://github.com/user-attachments/assets/153fabb3-2ef3-497f-98b0-a98601232e24)



## Why It's Good For The Game

Some of these sprites were some I saw people sad about lacking, and I
figured that I might as well get off my lazy ass and do something about
it. Knocked the HV gear out of the way and did a bit of a resprite for
the Vanguard Battlecoat after being suggested to do it by a few people.

## Changelog

:cl:
add: New sprites for Vox! Vanguard and Honorable Vanguard Battlecoat
sprite changes, NGR hard hats, and hazard vests!
/:cl:

code/modules/clothing/factions/ngr.dm

@@ -64,6 +64,7 @@
 	mob_overlay_icon = 'icons/mob/clothing/faction/ngr/suits.dmi'
 	icon_state = "ngr_hazard"
 	item_state = "redcloth"
+	supports_variations = VOX_VARIATION
 
 //////////////////
 //Armored suits//

code/modules/clothing/suits/armor.dm

@@ -330,7 +330,7 @@
 	icon_state = "armor_inteq_honorable_battlecoat"
 	item_state = "inteq_honorable_battlecoat"
 	armor = list("melee" = 40, "bullet" = 50, "laser" = 50, "energy" = 40, "bomb" = 25, "bio" = 0, "rad" = 0, "fire" = 70, "acid" = 90)
-	supports_variations = DIGITIGRADE_VARIATION_NO_NEW_ICON
+	supports_variations = DIGITIGRADE_VARIATION_NO_NEW_ICON | VOX_VARIATION
 
 /obj/item/clothing/suit/armor/inteq/corpsman
 	name = "inteq corpsman vest"