add world position properties to LdtkLevel and update scene builder

addons/csharp_ldtk_importer/LdtkSceneBuilder.cs

@@ -34,7 +34,6 @@ public class LdtkSceneBuilder
         return root;
     }
 
-    // A helper function to recursively set the owner on all children.
     private void SetOwnerRecursive(Node node, Node owner)
     {
         foreach (var child in node.GetChildren())
@@ -47,6 +46,7 @@ public class LdtkSceneBuilder
     private Node2D BuildLevel(LdtkLevel level)
     {
         var levelRoot = new Node2D { Name = level.Identifier };
+        levelRoot.Position = new Vector2(level.WorldX, level.WorldY);
         
         foreach (var layer in level.LayerInstances.Reverse())
         {