Change log for F5_SHAPE

Date Changes
2024-08-20 Bug-Fix:
- If "target" is null, and "has_principal_machine" is "true", then mapped "metadata.event_type" to "STATUS_UPDATE", else it is mapped to "GENERIC_EVENT".
- Mapped "requestHeaders_id_array.User-Agent" to "network.http.user_agent" and "network.http.parsed_user_agent".
- Mapped "requestHeaders_id_array.Referer" to "network.http.referral_url".
- Mapped "requestHeaders_id_array.Proxy-Client-IP", "requestHeaders_id_array.WF-Forwarded-For", "requestHeaders_id_array.X-Forwarded-For", and "requestHeaders_id_array.wl-proxy-client-ip" to "additional.fields".
2024-06-18 - Added support to handle unparsed JSON logs.