Add API for Registering Security Hints

[jzheaux]

Some Security AOT hints depend on infrastructural beans like AuthorizationProxyFactory to function. As such, it would be nice to have an API that is a little simpler for applications to implement than BeanFactoryInitializationAotProcessor, for example:

public interface SecurityHintsRegistrar {
    void registerHints(RuntimeHints hints, ConfigurableListableBeanFactory beanFactory);
}

Beans that implement this interface would be able to depend on Security infrastructural beans.