function Login(const RestClient: TScRestClient): boolean;
Description
Forces the login process and loads the Bearer token into the TScRestBearerAuthenticator object properties.
Returns True on success, False on failure.
This method can be used to obtain a token independently of any specific request, such as during application startup.
If the authenticator was created using the constructor without the AuthRequest parameter, the RestClient must be passed to the Login method.