- make_box(): center param accessible as named param only
- make_text(): added center param, center as default
- added add_ellipse and cut_ellipse()
- added angle param to add/cut_rect()
- added add/cut_slot variant with 2 points
- added add/cut/intersect_sketch()
- added make_sphere() and make_cylinder()
- added Body.cut_hole()
- added Body.move_to_origin(), Body.center() and Body.mirror()
- added Sketch.move_to_origin(), Sketch.center() and Sketch.mirror()
- added pattern_distribute() and pattern_distribute_stretch()
- breaking change: Sketch.add_polygon() has now parameter auto_close which is True by default
- introduced Interval1D, Interval2D, Interval3D