Change log for AKAMAI_WAF

Date Changes
2022-03-23 Bugfix-Fix for failed to parse data with all match patterns.
Added mappings for new fields.
eventId mapped to metadata.product_log_id.
eventDefinitionId mapped to target.resource.product_object_id.
eventDescription mapped to metadata.description.
eventName mapped to metadata.product_event_type.
eventTypeName mapped to additional.fields.
eventTypeId mapped to additional.fields.
eventData mapped to additional.fields.