The option to store city/town information as locality/localadmin when importing

[jgmarce]

When importing commercial datasets, there is good reason to preserve the locality/localadmin value, rather than cast that information aside. When Corelogic give me a City, (through the pelias.json configuration) I would like to save that value to either locality or localadmin. A) all cases or B) if nothing was return from PIP-service for this record. My testing shows this may apply to as many as 25 million USA addresses.