Salvage dungeons (#14520)

Content.Server/Procedural/DungeonAtlasTemplateComponent.cs

@@ -0,0 +1,13 @@
+using Robust.Shared.Utility;
+
+namespace Content.Server.Procedural;
+
+/// <summary>
+/// Added to pre-loaded maps for dungeon templates.
+/// </summary>
+[RegisterComponent]
+public sealed class DungeonAtlasTemplateComponent : Component
+{
+    [DataField("path", required: true)]
+    public ResourcePath? Path;
+}