Add support for MOM Sync Point Interactions

[timpokorny]

Add support for the following interactions from the MOM:

• HLAinteractionRoot.HLAmanager.HLAfederation.HLArequest.HLArequestSynchronizationPoints
• HLAinteractionRoot.HLAmanager.HLAfederation.HLAreport.HLAreportSynchronizationPoints
• HLAinteractionRoot.HLAmanager.HLAfederation.HLArequest.HLArequestSynchronizationPointStatus
• HLAinteractionRoot.HLAmanager.HLAfederation.HLAreport.HLAreportSynchronizationPointStatus

[timpokorny]

Tagging in @adlaws -- This is the ticket for the sync-point stuff