Add Exported Service List Event to Cluster Peering Replication

[erichaberkorn]

Description

• The exported service list event is used to ensure un-exported services get deleted even if the un-export happens while cluster peering replication is down.

Event Changes

Action	Before	After	Change in replicated event count
Remove all service instances of an exported service	One TypeURLExportedService delete event.	One TypeURLExportedService upsert event.	0
Unexport services	TypeURLExportedService upsert events for services with IndexedCheckServiceNodes. TypeURLExportedService delete events for services without IndexedCheckServiceNodes and unexported services.	One TypeURLExportedServiceList event. TypeURLExportedService upsert events for each exported service. No TypeURLExportedService events for unexported services.	A decrease by the number of unexported services minus one.
Export services	TypeURLExportedService upsert events for services with IndexedCheckServiceNodes. TypeURLExportedService delete events for services without IndexedCheckServiceNodes.	One TypeURLExportedServiceList event. TypeURLExportedService upsert events for each exported service.	One additional event.

PR Checklist

• updated test coverage
• external facing docs updated - NA
• not a security concern

[freddygv]