Dynamic space world generation and debris. (#15120)

* World generation (squash)

* Test fixes.

* command

* o

* Access cleanup.

* Documentation touchups.

* Use a prototype serializer for BiomeSelectionComponent

* Struct enumerator in SimpleFloorPlanPopulatorSystem

* Safety margins around PoissonDiskSampler, cookie acquisition methodologies

* Struct enumerating PoissonDiskSampler; internal side

* Struct enumerating PoissonDiskSampler: Finish it

* Update WorldgenConfigSystem.cs

awa

---------

Co-authored-by: moonheart08 <moonheart08@users.noreply.github.com>
Co-authored-by: 20kdc <asdd2808@gmail.com>

Content.Server/Worldgen/Components/BiomeSelectionComponent.cs

@@ -0,0 +1,21 @@
+using Content.Server.Worldgen.Systems.Biomes;
+using Content.Server.Worldgen.Prototypes;
+using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.List;
+
+namespace Content.Server.Worldgen.Components;
+
+/// <summary>
+///     This is used for selecting the biome(s) to be used during world generation.
+/// </summary>
+[RegisterComponent]
+[Access(typeof(BiomeSelectionSystem))]
+public sealed class BiomeSelectionComponent : Component
+{
+    /// <summary>
+    ///     The list of biomes available to this selector.
+    /// </summary>
+    /// <remarks>This is always sorted by priority after ComponentStartup.</remarks>
+    [DataField("biomes", required: true,
+        customTypeSerializer: typeof(PrototypeIdListSerializer<BiomePrototype>))] public List<string> Biomes = new();
+}
+