Change log for SAP_CHANGE_DOCUMENT

Date Changes
2026-03-17 Enhancement:
- Added support for JSON format.
- `event.idm.read_only_udm.metadata.event_timestamp`: Updated new format for timestamp parsing logic for `UDATE`, `UTIME` fields.
- `event.idm.read_only_udm.target.resource.attribute.labels`: Newly mapped `TEXT_CASE`, `CHNGIND`, `TABKEY`, `TABNAME` and `WAS_PLANND` raw log fields with `event.idm.read_only_udm.target.resource.attribute.labels` UDM field.
- `event.idm.read_only_udm.additional.fields`: Newly mapped `CDPOS_DATAAGING`, `CDHDR_DATAAGING`, `VALUE_OLD` , `VALUE_NEW`, `CUKY_NEW`, `CUKY_OLD`, `UNIT_OLD`, `UNIT_NEW`, `FNAME`, `ACT_CHNGNO` and `PLANCHNGNR` raw log fields with `event.idm.read_only_udm.additional.fields` UDM field.
2026-01-10 - Newly created parser.
- Added support for JSON format.
- event.idm.read_only_udm.metadata.event_timestamp: Newly mapped `UDATE`, `UTIME` raw log fields to `event.idm.read_only_udm.metadata.event_timestamp` UDM field.
- event.idm.read_only_udm.metadata.product_log_id: Newly mapped `CHANGENR` raw log field to `event.idm.read_only_udm.metadata.product_log_id` UDM field.
- event.idm.read_only_udm.metadata.product_version: Newly mapped `VERSION` raw log field to `event.idm.read_only_udm.metadata.product_version` UDM field.
- event.idm.read_only_udm.principal.user.userid: Newly mapped `USERNAME` raw log field to `event.idm.read_only_udm.principal.user.userid` UDM field.
- event.idm.read_only_udm.target.application: Newly mapped `TCODE` raw log field to `event.idm.read_only_udm.target.application` UDM field.
- event.idm.read_only_udm.target.resource.attribute.labels: Newly mapped `MANDANT`, `CHANGE_IND`, `LANGU` raw log fields to `event.idm.read_only_udm.target.resource.attribute.labels` UDM field.
- event.idm.read_only_udm.target.resource.name: Newly mapped `OBJECTCLAS` raw log field to `event.idm.read_only_udm.target.resource.name` UDM field.
- event.idm.read_only_udm.target.resource.product_object_id: Newly mapped `OBJECTID` raw log field to `event.idm.read_only_udm.target.resource.product_object_id` UDM field.
- event.idm.read_only_udm.additional.fields: Newly mapped `_DATAAGING`, `CDPOS_ITEMS` raw log fields to `event.idm.read_only_udm.additional.fields` UDM field.