Salvage dungeons (#14520)

Content.Shared/Procedural/DungeonPath.cs

@@ -0,0 +1,10 @@
+namespace Content.Shared.Procedural;
+
+/// <summary>
+/// Connects 2 dungeon rooms.
+/// </summary>
+public sealed record DungeonPath(string Tile, string Wall, HashSet<Vector2i> Tiles)
+{
+    public string Tile = Tile;
+    public string Wall = Wall;
+}