convergence results and figures
z-mesh poly meshes
z-mesh poly figures, forgot one file in previous
changed logical var name to write file
let vert_grid be recomputed and not read
missing verif tests already present in other poly

missing verif tests already present in other poly mesh generators
few emb meshes
driver to run several cases
plotting routines  to generate cv graphs
updates
added printout of geo var when there is a problem