2D examples and testing

[CNOT]

As I understand from the paper, vorocrust is a useful algorithm for both 2D and 3D mesh generation. However, none of the included tests show a 2D example and the documentation doesn't mention 2D mesh generation either.

Is the 2D algorithm implemented here as well or should I look somewhere else?

[CNOT]

Figure 10 of the paper is an example of a 2D object. Could you share the source of that figure too? Also, is there a way to enforce breaklines? These are similar to a boundary, but occur inside the object and ideally one likes the cell boundaries to respect them. It seems vorocrust should be able to easily handle these too.