Added jboss-product profile for usage with the versions plugin

You should just try it:
$ mvn -Pjboss-product versions:compare-dependencies -DremotePom=org.jboss.as:jboss-as-parent:7.4.2.Final-redhat-2
Or:
$ mvn -Pjboss-product versions:compare-dependencies -DremotePom=org.wildfly:wildfly-parent:9.0.0.Alpha2-SNAPSHOT
But that doesn't take into account some GAV renames. ;-)