[Feature Request] Merge Drag n Drop classes

Hi Jules,


Would be great if someday you can rework the whole DnD system so that there

is only a single codepath for FileDragAndDropTarget and DragAndDropTarget with a DnD type object for example.



Good request. Although I think I considered this when I first added the file dragging and there was some reason why it just didn't fit together.. (Can't remember the exact reason though, it was years ago!)

Maybe in order to not break existing code