public static void UpdateGame(Game game)
        {
            BlackJackDbContext context = new BlackJackDbContext();

            context.Games.Update(game);
            context.SaveChanges();
        }
        public static void AddGame(Game game)
        {
            BlackJackDbContext context = new BlackJackDbContext();

            context.Games.Add(game);
            context.SaveChanges();
        }