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/PostGeneration/SplineDungeonConnectorDunGen.cs

@@ -1,28 +0,0 @@
-using Content.Shared.Maps;
-using Robust.Shared.Prototypes;
-
-namespace Content.Shared.Procedural.PostGeneration;
-
-/// <summary>
-/// Connects dungeons via points that get subdivided.
-/// </summary>
-public sealed partial class SplineDungeonConnectorDunGen : IDunGenLayer
-{
-    [DataField(required: true)]
-    public ProtoId<ContentTileDefinition> Tile;
-
-    [DataField]
-    public ProtoId<ContentTileDefinition>? WidenTile;
-
-    /// <summary>
-    /// Will divide the distance between the start and end points so that no subdivision is more than these metres away.
-    /// </summary>
-    [DataField]
-    public int DivisionDistance = 10;
-
-    /// <summary>
-    /// How much each subdivision can vary from the middle.
-    /// </summary>
-    [DataField]
-    public float VarianceMax = 0.35f;
-}