First version plotting map for polygons in shapefiles

Hi @abatalla

Could you take care of finishing this development?

We would like to make use of it in SUNSET. I think it is quite advanced.

The latest thing I remember that needs to be tested is the option to select different regions (e.g. EU or Iberian peninsula, ...).

Don't hesitate to ask any questions you might have.

Thanks a lot,

Núria