Change log for GUARDICORE_CENTRA

Date Changes
2024-12-04 Enhancement:
- Mapped start to "metadata.event_timestamp".
2024-11-05 Enhancement:
- Added support for new pattern of CEF logs.
2024-10-09 Enhancement:
- Added support to parse the unparsed logs.
- Changed mapping of "os_name" , "enforcement" ,and "AssetType" from "additional.fields" to "security_result.detection_fields".
2024-08-30 Enhancement:
- Modified the Grok pattern to parse new log types.
- Mapped "source.vm.name" to "principal.hostname".
- Mapped "bucket_id", "policy_verdict", "network_profile", "source_process_hash", and "display_provider" to "security_result.detection_fields".
- Mapped "display_type" to "principal.platform".
2024-04-19 Enhancement:
- Added support for CEF logs.
2023-09-08 - Newly created parser.