Change log for PING

Date	Changes
2023-12-07	Bugfix: - Mapped "actors.client.type" to "principal.user.attribute.roles". - Mapped "actors.client.name" to "principal.user.user_display_name". - Mapped "actors.client.id" to "principal.user.userid". - Mapped "actors.client.href" to "principal.url". - Mapped "source.userAgent" to "network.http.user_agent". - Mapped "source.ipAddress" to "principal.ip". - Mapped "resources.href" to "target.url".
2023-04-06	Enhancement: - Parsed logs ingested in JSON format. - Added new Grok pattern to handle failing SYSLOG+JSON logs because of change in date format. - Mapped 'result.message.Country' to 'principal.location.country_or_region'. - Modified mapping for 'resource.status' from 'security_result.about.labels' to 'security_result.about.resource.attribute.labels'.
2022-08-04	Enhancement: - Mapped user_id to principal.user.userid. - wrote grok to extract user_id.
2022-07-21	Enhancement: - Added a new grok pattren for logs with product_event_type DEBUG. - Mapped description to metadata.description. - Mapped product_event_type to metadata.product_event_type. - Mapped src_host to principal.hostname. - Mapped src_port to principal.port. - Mapped userid to principal.user.userid. - Mapped sr_description to security_result.description. - Mapped sr_summary to security_result.summary. - Mapped event_type to USER_UNCATEGORIZED where userid not null.
2022-07-08	Enhancement: - Modified mapping for "actor.type" from "principal.user.role_name" to "principal.user.attribute.roles".