Biome rework (#37735)

* DungeonData rework

Back to fields, serializes better, just make new layers dumby.

* wawawewa

* Fix this

* Fixes

* Port the work over

* wawawewa

* zoom

* Kinda workin

* Adjust wawa

* Unloading work

* Ore + entitytable fixes

Iterate every dungeon not just last.

* Big shot

* wawawewa

* Fixes

* true

* Fixes

# Conflicts:
#	Content.Server/Procedural/DungeonJob/DungeonJob.cs

* wawawewa

* Fixes

* Fix

* Lot of work

* wawawewa

* Fixing

* eh?

* a

* Fix a heap of stuff

* Better ignored check

* Reserve tile changes

* biome

* changes

* wawawewa

* Fixes & snow

* Shadow fixes

* wawawewa

* smol

* Add layer API

* More work

* wawawewa

* Preloads and running again

* wawawewa

* Modified

* Replacements and command

* Runtime support

* werk

* Fix expeds + dungeon alltiles

* reh

---------

Co-authored-by: Nemanja <98561806+EmoGarbage404@users.noreply.github.com>

Content.Shared/Procedural/DungeonConfig.cs

@@ -12,11 +12,18 @@ public partial class DungeonConfig
     public List<IDunGenLayer> Layers = new();
 
     /// <summary>
-    /// Should we reserve the tiles generated by this config so no other dungeons can spawn on it within the same job?
+    /// Should we reserve the tiles generated by this config so no other layers at the same level can spawn on this tile?
     /// </summary>
     [DataField]
     public bool ReserveTiles;
 
+    /// <summary>
+    /// Should we return the reserved tiles to the upper level.
+    /// Set to false if you don't care if this dungeon has its tiles overwritten at higher levels.
+    /// </summary>
+    [DataField]
+    public bool ReturnReserved = true;
+
     /// <summary>
     /// Minimum times to run the config.
     /// </summary>