Move JMS high-level commands to the messaging extension

the CLI provides jms-queue, jms-topic and connection-factory commands to manage JMS resources.

These commands are registered in wildfly-cli module and are hard-coded with the /subsystem=messaging address.
With WildFly 10, the JMS capability will be provided by a new messaging-activemq extension.

Instead of having to hard-code this again in wildfly-cli module, the JMS commands will instead be loaded by the extension that provides the JMS resources (messaging in a 1st step, messaging-activemq in a 2nd step).