Provide camel subsystem as feature pack

Reported an patch provided by Thomas Diesler.

Copied from #11 on GitHub:

WildFly is moving towards a provisioning system based on feature packs. This is also important for a container based approach like wildfly-swarm.

For this to work, smartics would need to be directed to generate modules.xml files that contain

<artifact name="${org.hibernate:hibernate-core}"/>

instead of

<resource-root name="hibernate-core-1.2.3.jar"

For details see Wildfly Build Process.