alternate_building_names should have own file

[lkmorlan]

There should be a separate file to store the data now in column alternate_building_names in Buildings.csv. The columns of this new file should be (building_id, alternative_name) and these should together form the primary key. Once this is done, alternate_building_names should be removed from Buildings.csv.

This creates a better relational structure and keeps the data in Buildings.csv objective.

Another possibility would be to have primary key (building_id, name) and another column to define the status of the name, such as colloquial or archaic.