* edge event - added seq id auto generated column to fix issue with concurrent write of multiple edge events with the same created time
* kotlin Pair replaced by springframework class
* Handle cases when seq_id column started new cycle
* Added check for null in case entity was deleted
* GeneralEdgeEventFetched - sort order by seqId and not created time
* Edge event table - added migration script to add seq_id column
* Code review updates to be in sync with PE
* Improved handling cases when edge_event.seqId started new cycle
* Edge event table - seq_id column make to be cycled
* Improved handling of cases when seq_id column of edge_event table started new cycle
* Improved stability by properly handling exceptions
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