FlxSpine: Bounding boxes don't match the graphics

Seen here, is [the FlxSpine demo](https://haxeflixel.com/demos/FlxSpine/)

<img width="391" height="437" alt="Image" src="https://github.com/user-attachments/assets/502bfd87-241f-48dc-8b11-ee45b7c88198" />

Additionally, maybe FlxSpine should have custom debug draw showing the transformations 