Mirage Oasis readded from CSWT

Responding to a comment from the mod administrator

Author: Ennesan

_modpacks/packs/cswt/stable/mapList.yaml

@@ -189,6 +189,9 @@ backgrounds: backgrounds.yml
     MidgarTransit.zip:
       urls:
       - https://nikkums.io/cswt/Maps/MidgarTransit.zip
+    pacparty_mirageoasis.zip:
+        urls:
+        - https://nikkums.io/cswt/Maps/pacparty_mirageoasis.zip
     NLA.zip:
       urls:
       - https://nikkums.io/cswt/Maps/NLA.zip