Event Frames that can expire/auto-delete/archive

When generating Event Frames it would be useful to automatically remove the Event Frame, either when no longer active or in combination with no longer active and acknowledged, or other conditions. An example use case would be for PI Notifications - the need to retain the Event Frames might not be there once a Notification is sent and action taken. See https://feedback.osisoft.com/forums/555148-pi-server/suggestions/17219861-ability-to-send-a-notification-without-being-trigg For example, I might sent a notification to remind someone to use PI Manual Logger to enter some data, but I don't need an Event Frame to exist after this is dealt with. Other examples are that I might be using Event Frames to flag up interesting operational events on a dashboard so action can be taken, but once the event has been actioned it may no longer have any value. In summary: auto-archive/delete/expire Event Frames based on critera such as Inactive, Acknowledged, Schedule (remove Event Frames > 1 year old), etc.