Add support to listen to worker events

[rodrigorm]

When using then QueuesadillaShell I need to listen to Worker so I can react to some events in my CakePHP application.

[rodrigorm]

Maybe a mapper between League\Event and Cake\Event

[cleptric]

This would definitely be something very useful.
We already talked about this topic before.

In the meantime, you can simply subclass the QueuesadillaShell and override the QueuesadillaShell::getWorker method.

public function getWorker($engine, $logger) {
        $worker->attachListener('Worker.job.failure', function ($event) {
            ...
        });
        return $worker;
}

[rodrigorm]

This is what I will do for now. :)