Change log for DELL_SWITCH

Date	Changes
2024-04-25	Enhancement: - Added Grok patterns to parse a new log type. - Mapped "op" to "metadata.product_event_type". - Mapped "mac" to "principal.mac". - Mapped "addr" to "principal.ip". - Mapped "hostname" to "principal.ip". - Mapped "server_ip" to "principal.ip". - Mapped "server_port" to "principal.port". - Mapped "acct" to "principal.user.userid". - Mapped "target_ip" to "target.ip". - Mapped "local_ip" to "target.ip". - Mapped "local_port" to "target.port". - Mapped "File" to "target.file.full_path". - Mapped "target_host" to "target.hostname". - Mapped "target_user_id" to "target.user.userid". - Mapped "Server_ID" to "target.resource.product_object_id". - Mapped "tzknown", "is_synced" and "exe" to "security_result.detection_fields". - Mapped "res" to "security_result.summary". - If value of the field "res" is "", then mapped "status" to "security_result.summary". - Mapped "uid", "enterpriseId", "auid", "terminal", "subj", "grantors", and "ID" to "principal.resource.attribute.labels".
2024-04-04	- Added Grok patterns to parse new log type. - Mapped "prod_event_type" to "metadata.product_event_type". - Mapped "ip" to "principal.ip". - Mapped "dest_ip" to "target.ip". - Mapped "target_url" to "target.url". - Mapped "sec_description" to "security_result.description". - Mapped "action_details" to "security_result.action_details".
2024-01-04	- Added Grok patterns for newly ingested logs. - Added date block when "datetime" is in "SYSLOGTIMESTAMP" format. - Mapped "softwareName" to "principal.asset.software.name". - Mapped "swVersion" to "principal.asset.software.version". - Mapped "port" to "principal_port". - Mapped "user" to "principal.user.userid" and set "metadata.event_type" to "USER_UNCATEGORIZED" when "user" is present. - Mapped "application" to "principal.application". - Mapped "ip" to "principal.ip". - Set "sec_result.severity" to "INFORMATIONAL" when "severity" is "IFMGR-5-OSTATE_DN". - Mapped "msg" to "metadata.description".
2023-11-02	- Newly created parser.