[WFLY-3045] : Expose JAXRS deployments via the management API

Displaying JAXRS resources in deployments, showing paths and  methods.
Adding mappings to the deployment infos of servlets.

Jira: https://issues.jboss.org/browse/WFLY-3045
I think you can drop jaxrs- prefix for all 3 attributes.
given that end result address for this resource will be something like
/deployment=deployment.war/subsystem=jaxrs/....
no need for jaxrs duplication :)