Description of Linked Ticket

• Add wallTime field, equal to the wall field from the oplog, to all events
• Add collectionUUID field, equal to the ui field from the oplog, to all events
• Add dropTarget field to the rename event, equal to the dropTarget field from the oplog. The precise location of this new field will be clarified in the syntax document.
• Add shardName field, equal to the name of the shard event originated from, to all events in the sharded cluster