Change log for IMPERVA_FLEXPROTECT

Date Changes
2023-08-28 Enhancement:
- Mapped "qstr" to "security_results.detection_fields".
2023-07-10 Parsed and mapped additional fields.
- Mapped "fileId" to "network.session_id"
- Mapped "siteid" to "security_results.detection_fields".
- Mapped "suid" to "principal.user.userid".
- Mapped "device_facility" to "principal.location.city".
- Mapped "ccode" to "principal.location.country_or_region".
- Mapped "cicode" to "principal.location.city".
- Mapped "Customer" to "principal.user.user_display_name".
- Mapped "start" to "security_result.detection_fields.event_start_time".
- Mapped "cn1" to "network.http.response_code".
- Mapped "sip" to "target.ip".
- Mapped "spt" to "target.port".
- Mapped "cpt" to "principal.port".
- Mapped "ver" to "tls.version".
- Mapped "cs8Label" to "additional_cs8.key".
- Mapped "cs8" to "additional_cs8.value.string_value".
- Mapped "cs9Label" to "additional_cs9.key".
- Mapped "cs9" to "additional_cs9.value.string_value".
- Mapped "end" to "security_result.detection_fields.event_end_time".