Adds kepori hardsuit fallback (shiptest-ss13#3311)

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## Changelog

:cl:
imageadd: Kepori hardsuits now have a fallback icon
/:cl:

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code/game/objects/items.dm

@@ -36,7 +36,7 @@ GLOBAL_VAR_INIT(embedpocalypse, FALSE) // if true, all items will be able to emb
 	///If set, vox wearing this use this instead of their clothing file
 	var/vox_override_icon
 
-	/// Needs to follow this syntax: either a list() with the x and y coordinates of the pixel you want to get the colour from, or a hexcolour. Colour one replaces red, two replaces blue, and three replaces green in the icon state.
+	/// Needs to follow this syntax: either a list() with the x and y coordinates of the pixel you want to get the colour from, or a hexcolour. Colour one replaces red, two replaces green, and three replaces blue in the icon state.
 	var/list/greyscale_colors[3]
 	/// Needs to be a RGB-greyscale format icon state in all species' clothing icon files.
 	var/greyscale_icon_state

code/modules/clothing/factions/ngr.dm

@@ -123,6 +123,7 @@
 	helmettype = /obj/item/clothing/head/helmet/space/hardsuit/syndi/ngr
 	lightweight = 1
 	jetpack = null
+	greyscale_colors = list("#33353a", "#d9ad82", "#8c1a34")
 
 /obj/item/clothing/head/helmet/space/plasmaman/ngr
 	name = "NGR phorid envirosuit helmet"