Change log for ARBOR_EDGE_DEFENSE

Date Changes
2023-02-21 Enhancement -
- Mapped "protection_Group_Name","traffic_level" to "principal.group.attribute.labels".
2022-11-03 Enhancement - Extracted the value of hostname from syslog header and mapped it to "intermediary.hostname".
- Mapped "msg" to "metadata.description".
- Extracted value of "group_name", "traffic_level" from "msg" field and mapped it to "principal.group.attribute.labels".
- Mapped "cs3Label", "cs3" to "security_result.detection_fields".
- Mapped "cs7" to "security_result.category_details".
2022-09-30 Newly created parser