Change log for SOLARIS_SYSTEM

Date Changes
2024-12-06 Enhancement:
- Added support for a new format of syslog logs.
2024-04-05 Enhancement:
- Mapped "targetDisplayName" to "target.user.user_display_name".
- When "process" is "sudo", then mapped "user" to "principal.user.user_display_name".
2024-02-13 Newly created parser.