Xenoarchaeology Remap, Minor Rebalance. (#21273)

A full overhaul of Xenoarchaeology and its layout. Keeping the same size
of the hull and rooms for the most part. Doing its best to match both
deck two's re-mapped RnD and the other rooms of deck one.

Adding new areas, a grate and consolidating some things while stripping
things down to their essentials.

1. Like, removing 1 anomaly suit from the four. Two main ones, one in
the back.
2. Leaving the anomaly containers less scattered. Two in the chamber,
four in storage.
3. Adding some straight jackets and zipties to the supplies for test
subjects previously in Anomaly Chamber A. Incase the madness crystals or
whatever make things get spicy.
4. Making the gas-canisters overall more secure.
5. Seperating Xenoarchaeology by a door from the AA lift.
6. Adding a presentation room to the department intended to present
their findings for RP purposes.
7. Adding a cell-charger and empty cell. Mostly so you can see if the
anomaly is a battery drainer or charger if you're a human.
8. Adding a phoron bottle. (It's an activation index to splash it on
some anomalies, just not listed on the wiki.)
9. Adding insulated gloves in-case you need to move the emitter to an
odd spot. But, I generally set up spots for the emitters in all the
chambers.
10. Adding a Xenofauna gun, because Xenobio has one and they're even
less likely to need it then Xenoarchaeology. So why not give it to them
when they can spawn bears and hivebots on themselves?

If I missed someone, feel free to ask or mention it.

<img width="1168" height="789" alt="image"
src="https://github.com/user-attachments/assets/661b0ead-bc4b-48e9-84fa-bc62a9f4f5aa"
/>
StrongDMM Screenshot.
<img width="1251" height="1214" alt="image"
src="https://github.com/user-attachments/assets/d13b9f80-10fe-4484-890f-d0476f1d2a21"
/>
(In-game screenshot. I've loaded this thing up several times. The
buttons work.)

code/game/objects/structures/lattice.dm

@@ -199,6 +199,9 @@
 /obj/structure/lattice/catwalk/indoor/grate/slate
 	color = COLOR_SLATE
 
+/obj/structure/lattice/catwalk/indoor/grate/white
+	color = COLOR_WHITE
+
 /obj/structure/lattice/catwalk/indoor/urban
 	name = "grate"
 	desc = "A metal grate."