Create a new customer in LogicTrade.When the company name is filled, the customer will be added as a business client. If the company name is not filled, the customer will be added as an indivual. In that case the first and last name are required.The address object is used for both postal and visiting addresses. The country must be added based on the ISO 3166-1 alfa-2 code.After successful creation the customer object will be returned.