public void AddUser(User user)
{
string email = user.Email.Value;
var mongoUserEmail = new MongoUserEmail(email);
mongoUserEmail.SetNormalizedEmail(email.ToUpper());
user.SetEmail(mongoUserEmail);
user.GravatarEmail = email;
user.SetNormalizedUserName(email.ToUpper());
Collection.InsertOne(user);
}
