Change log for SYMANTEC_DLP

Date	Changes
2024-03-10	Enhancement: - Added new Grok patterns to parse logs of new SYSLOG formats. - Mapped "server" to "target.application". - Mapped "url" to "target.url". - Mapped "dataowner_mail" to "principal.user.email_addresses". - Mapped "reported_on" and "monitor_name" to "additional.fields". - Mapped "sender" to "network.email.from". - Mapped "subject" to "network.email.subject".
2024-02-20	Enhancement: - Mapped "blocked" to "security_result.action_details" and "security_result.action".
2024-01-12	Enhancement: - Mapped "incident_id" and "DLP_EP_Incident_ID" to "security_result.detection_fields". - Added a Grok pattern to parse logs of new SYSLOG formats. - Mapped "location" to "principal.resource.attribute.labels". - Mapped "target_type" to "target.resource.attribute.labels".
2023-12-06	Enhancement: - Added a Grok pattern to parse logs of new formats. - Mapped "application" to "principal.application". - Mapped "application_name" to "target.application". - Mapped "policy_name" to "security_result.detection_fields".
2023-09-02	Enhancement: - Added support to parse failing logs and mapped the fields accordingly.
2023-08-17	Enhancement: - Mapped "Occurred on" to "principal.labels". - When "act" is "Modified", set "security_result.action" to "ALLOW_WITH_MODIFICATION". - Mapped "status" to "principal.labels".