Change log for EPIC

Date Changes
2024-07-01 Enhancement:
- Changed mapping of "metadata.event_timestamp" from "devTime" to "timestamp" by extracting year from the field "devTime".
- Mapped "devTime" to "additional.fields".
2022-10-31 Bugfix- Added support for multiple events.
2022-06-09 Bugfix - added support for multiple events containing center dot "·".
Added conditional checks for field "devTime", "usrName", "shost", "sev", "IP".
2022-04-14 Bugfix-added support for multiple events