Add support for automated clearing of the [PolarisTransactions].[Polaris].[NotificationLog]
The PolarisTransactions].[Polaris].[NotificationLog] has Personally Identifiable Information (PII) in it. That table is never cleared, even if you select to clear the PatronID from the PolarisTransactions.
Ideally, we'd like an option for this data to just be cleared out after a certain period of time. If that is not possible, then NULLing the patron id when that option is enabled for the PolarisTransactions should work here too.
