Phantom agent

Enables VCS to determine the status of service groups that do not include OnOff resources, which are resources that VCS can start and stop. Without the "dummy" resource provided by this agent, VCS cannot assess the status of groups that only contain None (Persistent) and OnOnly resources because the state of these resources is not considered in the process of determining whether a group is online. Refer to the Veritas Cluster Server User's Guide for information on categories of service groups and resources.