- color per vertex of face of volume
  -> can be used in per volume/face/vertex
some minor bugs & modifs

fully operational & tested on map3 & gmap3

-> use map.dartIndex(d) instead of d.index
add new orbits (orbit_in_parent), functional with Map & GMap
-> storage of attributes not operational with EmbeddedGMaps
add traversor for incident cell of volume

small modif for warning in image class of MC
removing of unused code (testing) in map2

Use SelectorDartNoBoundary for rendering without boundary, example:
        SelectorDartNoBoundary<PFP::MAP> nb(myMap);
        m_render_topo->updateData<PFP>(myMap, position, 0.9f, 0.9f,nb);

+ test_compact dans Test

newFace et sewFaces avec parametre par defaut (withBoundary), utiliser false pour creer et coudre des faces avec points fixes
Map1::xxxFace devient xxxCycle
Ajout de la fonction bijectiveOrbitEmbedding
Utilisation dans importMesh pour eviter le partage d'embedding par les sommets topo