Updated the CLI to add incr to schedule options

The operator can create scheduled full, diff or incr backups. Incr was missed in the pgo cli -help and documentation

The documentation is updated to include the incremental option instead of just full or diff.

Issue: [ch6450]

Author: ValClarkson

pgo/cmd/create.go

@@ -287,7 +287,7 @@ func init() {
 
 	createScheduleCmd.Flags().StringVarP(&Schedule, "schedule", "", "", "The schedule assigned to the cron task.")
 	createScheduleCmd.Flags().StringVarP(&ScheduleType, "schedule-type", "", "", "The type of schedule to be created (pgbackrest, pgbasebackup or policy).")
-	createScheduleCmd.Flags().StringVarP(&PGBackRestType, "pgbackrest-backup-type", "", "", "The type of pgBackRest backup to schedule (full or diff).")
+	createScheduleCmd.Flags().StringVarP(&PGBackRestType, "pgbackrest-backup-type", "", "", "The type of pgBackRest backup to schedule (full, diff or incr).")
 	createScheduleCmd.Flags().StringVarP(&BackrestStorageType, "pgbackrest-storage-type", "", "", "The type of storage to use when scheduling pgBackRest backups. Either \"local\", \"s3\" or both, comma separated. (default \"local\")")
 	createScheduleCmd.Flags().StringVarP(&PVCName, "pvc-name", "", "", "The name of the backup PVC to use (only used in pgbasebackup schedules).")
 	createScheduleCmd.Flags().StringVarP(&CCPImageTag, "ccp-image-tag", "c", "", "The CCPImageTag to use for cluster creation. If specified, overrides the pgo.yaml setting.")