Change log for IBM_OPENPAGES

Date Changes
2024-10-10 Enhancement:
- Dropped the header which is getting parsed as a log.
- Mapped "target_user" to "target.user.userid" and "target_role" to "target.user.attribute.roles.name".
2024-10-07 Enhancement:
- When "logon successful?=No" then mapped "security_result.action" as "BLOCK".
- When "logon successful?=No" then mapped "security_result.action_details" as "Logon Failed".
- Mapped "IBM_OPENPAGES" to "metadata.vendor_name".
- Mapped "IBM_OPENPAGES" to "metadata.product_name".
2024-09-10 - Changed "column6" mapping from "target.user.userid" to "principal.user.userid".
- Mapped "OpenPages" to "metadata.product_name" and "IBM" to "metadata.vendor_name".
2024-08-02 - Newly created parser.