forked from viewit/OrcaSlicer-KX
now each node has:
* name,
* type,
* id (-1, if type == itSettings OR itInstanceRoot),
* bmp,
* action_bmp
* extruder
now each node has:
* name,
* type,
* id (-1, if type == itSettings OR itInstanceRoot),
* bmp,
* action_bmp
* extruder