Change log for ORDR_IOT

Date Changes
2024-03-05 Enhancement-
- Mapped timestamp to metadata.event_timestamp.
- Mapped protocol to network.ip_protocol.
- Mapped reference to additional.fields.
2022-08-19 Enhancement- - Mapped deviceName to event.idm.read_only_udm.principal.hostname.
- Modified grok to handle unparsed logs of type auditTrail.
- Reduced Generic percentage by mapping to event.idm.read_only_udm.metadata.event_type to STATUS_UPDATE where applicable.
2022-04-13 Enhancement-Added mappings for new fields:
- clientId mapped to event.idm.read_only_udm.principal.mac.
- alarmHash mapped to event.idm.read_only_udm.additional.fields.
- connectionState mapped to event.idm.read_only_udm.additional.fields.
Increased parsing percentage.