Spritebloat final boss (#5704)

## About The Pull Request
SO! This pr does a few things:
One, it makes a new system for having properly dynamic uniforms. You can
select the core components (for most things, a shirt and pants),
accessories, etc. I've gone ahead and made a dynamic security uniform
via this. I also made a dynamic security cap!

Two, it adds a few black reskins. All the reskins do is remove some
small red accent. The reskins are available for the following:

Sec hud sunglasses
Sec gloves
Sec belt

Tackle gloves and gorrila gloves both can also now be reskinned to the
black variant that already existed.

Before anyone screams, I am adding NO blue. (Though, you could recolor
the uniform in the loadout)

(video was too big for github so here it is on catbox)
https://files.catbox.moe/8wtgkv.mp4
## Why It's Good For The Game
I kept feeling unsatisfied with my options as security, and as a whole.
Hopefully this is a better uniform system, even if we don't end up using
it that much.
## Proof Of Testing
<details>
<summary>Screenshots/Videos</summary>

</details>

## Changelog
🆑 UvvU
add: Added dynamic uniform support
add: Added black varients for the sec huds, belt, and gloves
/🆑

code/modules/admin/greyscale_modify_menu.dm

@@ -31,6 +31,8 @@
 
 	/// Whether the menu is in the middle of refreshing the preview
 	var/refreshing = TRUE
+	///BUBBER VAR: Optional display labels for color groups, keyed by color index.
+	var/list/color_labels
 
 	/**
 	 * Whether the menu is currently locked down to prevent abuse from players.
@@ -102,12 +104,14 @@
 /datum/greyscale_modify_menu/ui_data(mob/user)
 	var/list/data = list()
 	data["greyscale_config"] = "[config.name]"
+	data["full_color_string"] = split_colors?.Join("") //BUBBER ADDITION
 
 	var/list/color_data = list()
 	data["colors"] = color_data
 	for(var/i in 1 to config.expected_colors)
 		color_data += list(list(
 			"index" = i,
+			"label" = color_labels?["[i]"] || color_labels?[i], //BUBBER ADDITION
 			"value" = split_colors[i]
 		))