Ngr+Hardliner digitigrade sprites (#3755)

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## About The Pull Request

Adds ditigrade sprites for the common crew and officers of NGR and
Hardliner factions.

Sprites by @Imaginos16

![Screenshot 2024-11-14
001631](https://github.com/user-attachments/assets/03df5116-499d-4bf4-88f9-15ee7df8cdc2)


## Why It's Good For The Game

Ditigrade sprites have been lacking for both NGR and Hardliner crews.
These sprites by Imaginos adds a handful to the basic and officer
jumpsuits.

## Changelog

:cl: PositiveEntropy
add: Ditigrade sprites for NGR and Hardliner regular and officer
jumpsuits.
/:cl:

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code/modules/clothing/factions/ngr.dm

@@ -11,6 +11,7 @@
 	can_adjust = FALSE
 	icon = 'icons/obj/clothing/faction/ngr/uniforms.dmi'
 	mob_overlay_icon = 'icons/mob/clothing/faction/ngr/uniforms.dmi'
+	supports_variations = DIGITIGRADE_VARIATION
 
 /obj/item/clothing/under/syndicate/ngr/fatigues
 	name = "\improper NGR fatigues"
@@ -29,6 +30,7 @@
 	desc = "A button-up in a tasteful black with beige pants, used by officers of the New Gorlex Republic."
 	icon_state = "ngr_officer"
 	item_state = "ngr_officer"
+	supports_variations = DIGITIGRADE_VARIATION
 
 /obj/item/clothing/under/plasmaman/ngr
 	name = "\improper NGR phorid envirosuit"