Invalid: -x option in logon-summary and eid-metrics will result in duplicate results

[YamatoSecurity]

Turning on -x to carve records from slack will often result in duplicate events being read, however, logon-summary and eid-metrics does not do any filtering for duplicate events. I think we need to keep track of timestamp, etc.. information for events only when -x is being used and filter on duplicate events before giving results in order to give more accurate results.