[MIRROR] Converts ghosts mobs to a basic mob, slightly changes how ghosts are given their identities [MDB IGNORE] (#18550)

* Converts ghosts mobs to a basic mob, slightly changes how ghosts are given their identities (#72196)

## About The Pull Request

Performs a very simple conversion of ghosts to basic mobs. They're
relatively lacking in unique behavior in their current state, but they
didn't really have any when they were simple animals either. They
retaliate, they float, they do everything they did before, but now as a
basic mob.

Kilostation and Derelict Station 6 have had their mapped-in ghosts
converted to the new type as well. I'm unsure if there are any other
mapped instances of ghosts that will need changing, but please let me
know if there are.

Also in this PR is a slight rework of how ghost's get their hair/name.
As an ADDED BONUS, ghosts now get random hair to gow ith their randomly
generated names, rather than hair only being only possible through
varediting. (Thank you tattle for helping me figure this out).
## Why It's Good For The Game

Strikes another simple_animal from existence. Gives ghost mobs a bit
more _visual flair_.
## Changelog
🆑
code: Ghosts are now basic mobs! You might not notice any difference,
but...
code: Ghost mobs now spawn with hair and sometimes facial hair.
/🆑

Co-authored-by: Jeremiah <42397676+jlsnow301@ users.noreply.github.com>

* Converts ghosts mobs to a basic mob, slightly changes how ghosts are given their identities

Co-authored-by: Rhials <Datguy33456@gmail.com>
Co-authored-by: Jeremiah <42397676+jlsnow301@ users.noreply.github.com>
Co-authored-by: tastyfish <crazychris32@gmail.com>

tools/UpdatePaths/Scripts/72196_ghost_simple_to_basic.txt

@@ -0,0 +1,3 @@
+# modifies simple_animal ghosts into the new basic mob ghost type
+
+/mob/living/simple_animal/hostile/retaliate/ghost : /mob/living/basic/ghost{@OLD}