Subscribes and unsubscribes the given notifier to the requested resource. The Monitor will inform the notifier when when results it susbcribes to are changed
via the ChangeSet interface.
This interface, as well as ChangeSet, ResourceChangeNotifier, ResourceChangeListener and ResourceChangeScanner are still considered subject to change.
Use the XML format change-set, as
part of the ResourceType api when adding to KnowledgeBuilder, which is considered stable. KnowledgeBuilder currently ignored Added/Modified xml elements,
the KnowledgeAgent will use them, when rebuilding the KnowledgeBase.