Fix "TaxlotState" -> "TaxLotState"

[AndrewDevetry]

The casing for TaxLotState is incorrect. When a client tries to configure SEED columns using py-seed, it fails because it doesn't recognize TaxlotState. Here is what SEED returns when you try to run the current code:

table_name must be "PropertyState" or "TaxLotState", 
calling service SEED as SEEDReadWriteClient.post with url http://127.0.0.1:80/api/v3/columns/?organization_id=2, 
http method: POST supplied with json={
   'column_name': 'water_heating_first_hour_rating', 
   'display_name': ' Water Heating First Hour Rating', 
   'table_name': 'TaxlotState', 
   'column_description': ' Water Heating First Hour Rating', 
   'data_type': ' number', 
   'organization_id': 2
}, organization_id=2 http status code: 400

[AndrewDevetry]

@kflemin