Rules do not scan dependency injection without a handler

[maschnetwork]

Problem: You can run standard Spring Boot applications via the Serverless Java Container or the Lambda Web Adapter. In that case, no specific handler interface needs to be implemented. Currently the SnapStart rules would therefore not recognize any violation of the rules:

public class UnicornControllerHandler {

    private final UnicornService unicornService;
    private final UUID uuid;
    private static final Logger logger = LoggerFactory.getLogger(UnicornControllerHandler.class);

    public UnicornControllerHandler(UnicornService unicornService) {
        this.unicornService = unicornService;
        uuid = UUID.randomUUID();
    }
}

This is somehow related to #24 but the checks seem to only apply when the class and the method have a specific name.