is there an example of how to do drag and drop with cljfx?

@esp1 I haven't seen any. I would guess it would be similar to how it's done in plain JavaFX, since most of the stuff is happening in event handlers. cljfx props for drag event handlers can be found here: https://github.com/cljfx/cljfx/blob/master/src/cljfx/fx/node.clj#L58-L63