public static void AddUser()
        {
            /*User user = new User();
            user.FirstName = "Gigi";
            user.LastName = "Vasile";
            user.Email = "*****@*****.**";*/

            IUserService userService = new UserService();
            IRoleService roleService = new RoleService();
            //userService.AddUser(user);
            //userService.UpdateLastName("*****@*****.**", "bau");
            //Role role = roleService.GetRoleByName("XYZ");
            //userService.AddRole(role);
            userService.UpdateEmail("*****@*****.**", "*****@*****.**");
        }