EJBInjectionEnricher makes too strong assumptions about JNDI names in the "anonymous" case

The EJBInjectionEnricher supports injecting the test instance fields annotated with javax.ejb.EJB. However, looking at the EJBInjectionEnricher.getJndiNamesForAnonymousEJB method, it makes too strong assumptions about the JNDI name. Specifically, it assumes the test.ear and test names. That doesn't necessarily have to be correct (e.g. WildFly Swarm Arquillian adapter doesn't use these names). There's an easy way to improve this for some situations: also consider the java:module portable namespace. It can't fix all situations, but it does fix some of them. (For Swarm, it's completely enough, since Swarm doesn't support EARs.)