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.