Rebase Saltern (DeltaV-Station#804)

# Description

Saltern, now featuring a full Epistemics department, and a Supermatter
engine. :)

<details><summary><h1>Media</h1></summary>
<p>


![Saltern-0](https://github.com/user-attachments/assets/10de83fa-5ddb-47fe-b62f-3441314225be)

</p>
</details>

# Changelog

:cl:
- add: Saltern has been added to the map rotation. Now featuring a
compact Supermatter engine, full Epistemics department, and a
significantly expanded Chapel and Library.

Content.IntegrationTests/Tests/PostMapInitTest.cs

@@ -51,6 +51,7 @@ public sealed class PostMapInitTest
             "NukieOutpost",
             "Pebble", //DeltaV
             "Edge", //DeltaV
+            "Saltern",
             "Shoukou", //DeltaV
             "Tortuga", //DeltaV
             "Arena", //DeltaV