public static void main(string[] args)
        {
            ICarService carService = new CarService(new EfCarDal());

            IRentService rentService = new RentService(new EfRentDal());

            //var liste = rentService.GetAllNotReturned(DateTime.Now);
            foreach (var rent in rentService.GetAllNotReturned(DateTime.Now))
            {
                Console.WriteLine(rent.RentDate + " "
                                  + carService.GetById(rent.CarId).Plate + " "
                                  + rent.RentDate + " " + rent.EstReturnDate);
            }
        }