Support for Tiled .tmx infinite maps

[AlmasB]

Discussed in https://github.com/AlmasB/FXGL/discussions/1262

^{Originally posted by **tobithe1st** April 4, 2023} Hey, Im just getting started with FXGL and already have problems getting the TileMap set up. ``` @Override protected void initGame(){ FXGL.getGameWorld().addEntityFactory(new KeplerTownFactory()); FXGL.setLevelFromMap("test.tmx"); } public static void main(String[] args) { launch(args); } } ``` After starting the application I get the following exception:  I already tried all possible directories - nothing. When choosing a json file, the AssetLoader finds it ind resources/assets/json , but is also throwing an exception:  Map was created with Tiled.

[AlmasB]

For reference purposes: <chunk> in https://doc.mapeditor.org/en/stable/reference/tmx-map-format/