Changes to Create a new Tax.

removed the enum value volta of the request property tax/product_type

added the new optional request property tax/kind

added the optional property tax/kind to the response with the 200 status

removed the volta enum value from the tax/product_type response property for the response status 200

added the new optional request property tax/municipality

added the new optional request property tax/product_type

added the optional property tax/product_type to the response with the 200 status