Initialization of vertex embedding for EmbeddedMap3

[goldnd]

The intialization of the vertex embedding for cutEdge in embeddedMap3 is commented out. Uncommenting fails so I copied and modified the edge embedding code:

if(isOrbitEmbedded<VERTEX>())
    {
        // embed the new darts created in the cut vertex
        Algo::Topo::setOrbitEmbedding<VERTEX>(*this, d, getEmbedding<VERTEX>(d)) ;
        // embed a new cell for the new vertex and copy the attributes' line (c) Lionel
        Algo::Topo::setOrbitEmbeddingOnNewCell<VERTEX>(*this, nd) ;
    }

I can submit a pull request but there are other changes that you may not want on my branch.

[sylvainthery]

The right thing to do is:

if(isOrbitEmbedded<VERTEX>()) \n
      Algo::Topo::initOrbitEmbeddingOnNewCell<VERTEX>(*this, nd) ;

But in fact it is not really necessary, because of the lasy embedding approch we take.
When you access to a non-embedded cell for writing in an attribute the embedding is
done. The drawback is a crash if you try to read before the first write (but normally you
should not).

The modification has been pushed in current master