cannot find beans when working locally with jetty:run

OWB cannot find any beans while running locally in jetty because the beans.xml resides in target/guess/WEB-INF and the classes are in target/classes which isn't scanned therefor!

Maybe we can introduce some fix for this in WarMetaDataDiscoveryImpl::createURLFromWARFile()?

A possible workaround in the meantime is to also add an empty src/main/resources/META-INF/beans.xml