[EAP][XA] jta-crash-rec-eap quickstarts should use correct settings with remote AMQ7 broker

The https://github.com/jboss-openshift/openshift-quickstarts/tree/master/jta-crash-rec-eap quickstart tests crash of the server and how transaction is recovered. But there is used ephemeral in-VM broker as participant.
This means the quickstart does not work correctly as participant xid is lost during the crash. It does not provide a good guidance for any user as inVM AMQ7 has to be ommitted on OpenShift and remote AMQ7 service should be used instead.

The goal is to fix this erro in the configuration. It's needed a new service with AMQ7 is introduced to the templates and the EAP configuration is changed to use it.

This is a follow-up issue on the https://issues.jboss.org/browse/CLOUD-2768 where jta quickstarts were merged under one quickstart umbrella consisting eap6 and eap7 and where README.md was updated to reflect the openshift environment.