Support injection of JMSContext

From JMS 2.0 JMS Context javadoc:

"Applications running in the Java EE web and EJB containers may alternatively inject a JMSContext into their application using the @Inject annotation."

The WildFly messaging subsystem should provide the Bean to inject JMSContext. The JMSContext is created by looking up the (eventually default) JMS ConnectionFactory from JNDI and calling createContext() on it.