Add more printed out information about progress create_mesh_from_regions

[nick]

It would be great to add some more printed out information in "create_mesh_from_regions". I'm running a model that has 1200000 triangles and there has been no output for about 2 hours... I think it is still running properly. The last information printed out is

Recovering segments in Delaunay triangulation.
Removing unwanted triangles.
Spreading regional attributes and area constraints.
Adding Steiner points to enforce quality.

Writing vertices.
Writing triangles.
Writing segments.
Writing neighbors.

Statistics:

  Input vertices: 16
  Input segments: 16
  Input holes: 0

  Mesh vertices: 599308
  Mesh triangles: 1197392
  Mesh edges: 1796699
  Mesh exterior boundary edges: 1222
  Mesh interior boundary edges: 3716
  Mesh subsegments (constrained edges): 4938

I'm not sure where this process is stuck but it is somewhere in "mesh_interface.py"... I think.

[duncan]

Create mesh is alot faster now, so could you check if you still would like print statements?

[nick]

Great, extra print statements are not necessary anymore