[WFCORE-28] Add Global Resource Notifications

Add the global notification handlers to all tests
that modify resources to remove the warnings about the
emitted notifications not being defined

JIRA: https://issues.jboss.org/browse/WFCORE-28
Merge pull request #140 from jmesnil/WFCORE-28_global_resource_notifications

[WFCORE-28] Add Global Resource Notifications