Nukie Aliases and Some Hairspray (#79653)

## About The Pull Request

Nuclear operatives now receive an alias for their first name, instead of
a default human name. This alias is randomly selected, or can be set in
your name preferences.


![image](https://github.com/tgstation/tgstation/assets/28870487/2584b625-4668-4738-a662-8205476fac2f)

This does not affect Operative Leaders selecting the team's last name.
This means that **operative names are now "[Alias chosen by player]
[Team name chosen by leader]".**

There is a list of default aliases, in case no alias has been selected.
I randomly came up with a bunch of stuff from the top of my head and put
it in a text file. If you think of something better, choose it yourself!

**OH, ALSO:**

There's some hair dye in the Firebase dorms now. Useful if you want to
further differentiate between your Operative/Crew characters, or just
look pretty.
## Why It's Good For The Game

No longer shall nukies be "your character but with a different name".
Now you can give yourself a bit more identity instead of just a random
name.

More customization options means more opportunities for people doing
interesting stuff, and to branch away from the beaten path of boring
meta strats.
## Changelog
🆑 Rhials
add: Nuclear Operatives, in an attempt to appeal to the more "tacticool"
members of their cause, have begun using callsigns to designate
themselves. Check your preferences to set your Operative Alias!
qol: At the request of the more vain members of the cause, hair dye has
been added to the Operative Firebase dorms.
/🆑

code/modules/client/preferences/names.dm

@@ -155,3 +155,25 @@
 
 /datum/preference/name/bible/create_default_value()
 	return DEFAULT_BIBLE
+
+/// The first name given to nuclear operative antagonists. The last name will be chosen by the team leader.
+/datum/preference/name/operative_alias
+	savefile_key = "operative_alias"
+	allow_numbers = TRUE //You can get a little wacky with your alias nobody will judge you
+	explanation = "Operative Alias"
+	group = "antagonists"
+
+/datum/preference/name/operative_alias/create_default_value()
+	return pick(GLOB.operative_aliases)
+
+/datum/preference/name/operative_alias/is_accessible(datum/preferences/preferences)
+	. = ..()
+	if(!.)
+		return FALSE
+
+	// If one of the roles is ticked in the antag prefs menu, this option will show.
+	var/static/list/ops_roles = list(ROLE_OPERATIVE, ROLE_LONE_OPERATIVE, ROLE_OPERATIVE_MIDROUND, ROLE_CLOWN_OPERATIVE)
+	if(length(ops_roles & preferences.be_special))
+		return TRUE
+
+	return FALSE