public LocalCustomerRepository()
 {
     Customers = new List <Customer>()
     {
         new Customer("Thom", "van de Pas", "*****@*****.**", "0612345678", new Address()),
         new Customer("Casper", "Pijnenburg", "*****@*****.**", "0612345678", new Address())
     };
     LocalCrud = new LocalCrud <Customer>(Customers);
 }