Set in_protected_area to True or False (no none)

[lizgzil]

In run_add_features.py I noticed that "in_protected_area" can be True or None for England and Wales, but True or False for Scotland.

This means in calculate_suitability.py that the not_in_protected_area_score isn't working as it should for Nulls. An example of this is below (I'd expect the nulls should get a score of 1):

I noticed this in investigating why Scotland seemed to have higher scores for HN's across the board - it seems like some of the LSOAs in England and Wales aren't getting the points for not being in a protected area.

Not sure where the best fix to this would be - in generate_df_uprn_in_cons_area maybe?