Chamfer broken when selecting by face

[MatthiasJ1]

This is useful in the scenario when you are trying to select edges on the inner or outer wires of a face of a solid.

---

p = Cylinder(5,10)
p = chamfer((p.faces()>>Axis.Z)[0].edges(), 1)

ValueError: 2D chamfer operation takes only Vertices

---

p = extrude(Circle(5), 10)
p = chamfer((p.faces()>>Axis.Z)[0].edges(), 1)

ValueError: 2D chamfer operation takes only Vertices

---

p = Cylinder(5,10)
p = p.chamfer(1, None, (p.faces()>>Axis.Z)[0].edges())

TypeError: Cylinder.__init__() missing 1 required positional argument: 'height'

---

p = extrude(Circle(5), 10)
p = p.chamfer(1, None, (p.faces()>>Axis.Z)[0].edges())

This one works.