narayana

[JBTM-3486] Uncoupled ArjunaJTA.jta and ArjunaCore.arjuna from the QA module when it comes to the Oracle driver

[CHECKSTYLE] adding checkstyle rules for Narayana CDI module

[JBTM-3442] using Weld API to get transactional annotation at CDI interceptor if Weld is available

[SCRIPTS ONLY] making the step of cloning of WildFly sources as an individual step

[JBTM-3485] upgrade CDI API used in code from 1.2 to 2.0