Adds the Nomad crash site to the rockplanet (#2384)

Is the nomad a ship or a faction? I'll leave it to the lore junkies to
decide down the line.

## About The Pull Request

Adds the Nomad Wreck to the ruin lineup of the Rock Planet. 


![CrashedShiphehe](https://github.com/shiptest-ss13/Shiptest/assets/33048583/a88ff1bb-ea97-45f1-889c-22567b46bc4c)


Also repaths area/mine/rockplanet to area/ruin/rockplanet. The areas in
this file weren't even being used so I might go back and actually make
all the rockplanet ruin areas use this file later. All rockplanet ruins
bar this new one currently use area/ruin/powered and
area/overmap_encounter/planetoid/rockplanet for their areas. Using the
default case of ruin/powered for all of your ruins isn't good practice.

Finally adds a new ship manufacturer decal. I've been _illegally_ having
fun brainstorming up an entire new lineup of ships. Furthermore, they =
have garnered positive feedback from project managers in the official
discord, so I'm confident in doing this here. This ruin is the first in
a series of ruin addition that feature these vessels in an unflyable
state. Be they wrecks, conversions, legitimate salvage, or otherwise.
Introducing **Arrow & Axe** and their Dockyard subdivision. Hopefully a
striking addition to the Shiptest universe!

![More Arrow More
Axe](https://github.com/shiptest-ss13/Shiptest/assets/33048583/9bed611e-3a16-49cd-8f18-8b1ffa50d672)


I have been mapping for Shiptest all week, and my head is still full of
a great deal many ideas! This is only the start so be on the lookout for
more!

Shoutout to @Imaginos16 for actually spriting out the crappy MSPAINT
rendition of the logo. Excellent work as always!

## Why It's Good For The Game

-Ruins are requested, so ruins shall be received. 
-New 7th ship manufacturer to add even more diversity to the game. This
one is Military, so expect even more Spartan Vessels.
---Hammerhead vessel design, Flat-Bow profiles. Prominent nacelles and
fishtale sterns. Interiors are asym. and biased port or stbd. (You'll
see a complete one that's been converted into a salvage depot for my
next PR).
-New Ship manufacturer decal courtesy of @Imaginos16 to really drive
that home.
-Repathing the rockplanet.dmm areas out from under ../mine (and they
were unused!) into ../ruin to bring it in line with everything else.



## Changelog

:cl:
add: New Rockplanet Ruin
add: New ship manufacturer sprites. 
code: Repaths areas in rockplanet.dmm to be in line with other ruins.
Starts using rockplanet.dmm.
code: Code support for Arrow & Axe Dockyard sprites. 
/:cl:

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Signed-off-by: spockye <[email protected]>
Co-authored-by: spockye <[email protected]>