hyperbox mesh orientation

[luiswirth]

We should ensure that our manifold is always positively oriented.

In hyperboxmesh we have coordinates and can check this. We observe that our d-cube triangulation into d! d-simplicies algorithm gives us both pos and neg oriented simplicies. We currently just swap two vertices to ensure positive orientation, but this destroys the nice pattern of walking along the edges of the d-cube... Can we avoid this?

[luiswirth]

Either there exists a nice permutation of the permutation what switches orientation while also being a nice structural ordering.

Or we could also superimpose a orientation symbol next to the order of the vertices.