code: @Nonnull
    public static AuthIdentificationResult createSuccess (@Nonnull final IAuthToken aAuthToken)
    {
      ValueEnforcer.notNull (aAuthToken, "AuthToken");
      return new AuthIdentificationResult (aAuthToken, null);
    }
docs: Factory method for success authentication.
  
  @param aAuthToken
  The auth token. May not be <code>null</code>.
  @return Never <code>null</code>.