Polyhedron Diagnostics Extended

As part of looking for some bug in the CSG implementation, I extended the diagnostics I had created for the polyhedron a long time ago. It only allows some limited access to the internal data, e.g. it will show me the edge numbers used by a face and allow me to jump to one of the edges to check, which faces use it.

Today I only extended it a bit, but I think it makes it much more useful. For faces the face normal is now also printed, before it was only drawn into the model as a short line. Also lists containing edges now not only show the edge number, but also the two point numbers. And finally lists containing vertex numbers now also show the coordinates. Only the face normal is new, the other information was available before, but it needed some clicks to find it, so now it is just more condensed.