Change log for CYBERARK_PRIVILEGE_CLOUD

Date Changes
2024-03-17 Enhancement:
- Mapped "device_version" to "metadata.product_version".
- Mapped "device_event_class_id" and "event_name" to "metadata.product_event_type".
- Mapped "msg" to "metadata.description".
- If "shost" is IP then mapped "shost" to "principal.ip" else mapped it to "principal.hostname".
- If "dvc" to "principal.hostname".
- Mapped "dhost" to "target.hostname".
- Mapped "duser" to "target.user.user_display_name".
- Mapped "suser" to "principal.user.user_display_name".
- Mapped "act" to "security_result.action_details".
- Mapped "severity" to "security_result.severity".
- Mapped "cn1", "cn1Label", "cn2", "cn2Label", "cs1", "cs1Label", "cs2", "cs2Label", "cs3", "cs3Label", "cs4", "cs4Label", "cs5", "cs5Label", and "fname" to "additional.fields".
2023-11-24 - Newly created parser.