public void UpdateEmployeeType(EmployeeType type)
 {
     EmployeeType = type;
 }
 public EmployeeEntity(string firstName, string lastName, PhoneNumber number, string email, PayRoll payRoll, EmployeeType type)
 {
     FirstName     = firstName;
     LastName      = lastName;
     ContactNumber = number;
     Email         = email;
     Payroll       = payRoll;
     EmployeeType  = type;
 }