Retrieve all registrations for a corporation with optional filters
["US", "CA"]["CA", "NY", "TX"]STATE_OR_PROVINCE, CITY, COUNTY, DISTRICT, LOCAL, COUNTRY, TERRITORY"California" or "Los Angeles"EXISTING — Registration created by the user for an existing tax accountNEW — Registration created by Commenda for a new tax accountPENDING, VALIDATION_IN_PROGRESS, VALID, INVALID