Ming Supermatter (#5716)

## Short description
Adds a mid sized supermatter setup to Ming.

## Why we need to add this
More supermatter maps = more chance for anyone who wanted to play with
one to have the opportunity to do so.

## Media (Video/Screenshots)
<img width="1201" height="606" alt="image"
src="https://github.com/user-attachments/assets/10f1b12b-db16-4e07-ac85-40ca4bda4904"
/>

## Checks
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- [x] I do not require assistance to complete the PR.
- [x] Before posting/requesting review of a PR, I have verified that the
changes work.
- [x] I have added screenshots/videos of the changes, or this PR does
not change in-game mechanics.
- [x] I affirm that my changes are licensed under the [MIT
License](https://github.com/ss14Starlight/space-station-14/blob/Starlight/LICENSE.TXT)
and grant permission for use in this repository under its conditions.

**Changelog**

:cl: OJG
- add: Added a mid sized Supermatter setup to Ming.

Author: OrangeJuiceGoose