add hole_tags to add_hole_from_polygon

[James Hudson]

Look at this code in mesh_interface.py, in the function add_hole_from_polygon:

# Do interior holes if interior_holes is not None:

for polygon in interior_holes:

m.add_hole_from_polygon(polygon,

geo_reference=poly_geo_reference)

You would need to add this parameter

# Do interior holes if interior_holes is not None:

for polygon in interior_holes:

m.add_hole_from_polygon(polygon,

segment_tags=hole_tags, geo_reference=poly_geo_reference)

and then pass hole_tags into add_hole_from_polygon. This has the same form as the boundary_tags. It's a 2-line fix