Change log for CISCO_FIRESIGHT

Date	Changes
2024-05-22	Enhancement: - Added a Grok pattern to parse dropped logs. - Mapped "product" to "vulnerabilities.vendor". - Mapped "descript" to "vulnerabilities.description". - Mapped "severity_detail" to "vulnerabilities.severity_details". - Mapped "inter" to "intermediary.hostname". - Mapped "eventId" to "metadata.product_event_type". - Mapped "DeviceUUID" to "metadata.product_log_id". - Mapped "InstanceID" to "target.asset_id". - Mapped "ApplicationProtocol" to "network.application_protocol". - Mapped "SrcIP" to "principal.ip" and "principal.asset.ip". - Mapped "DstIP" to "target.ip" and "target.asset.ip". - Mapped "SrcPort" to "principal.port". - Mapped "DstPort" to "target.port". - Mapped "Protocol" to "network.ip_protocol". - Mapped "InitiatorPackets" to "network.sent_packets". - Mapped "ResponderPackets" to "network.received_packets". - Mapped "InitiatorBytes" to "network.sent_bytes". - Mapped "ResponderBytes" to "network.received_bytes". - Mapped "URL" to "target.url". - Mapped "AccessControlRuleName" to "security_result.rule_name". - Mapped "ConnectionID" to "security_result.about.resource.attribute.labels". - Mapped "FirstPacketSecond" to "security_result.about.resource.attribute.labels". - Mapped "EventPriority" to "security_result.severity". - Mapped "WebApplication", "URLReputation", "EgressInterface", "IngressInterface", "ACPolicy", and "NAPPolicy" to "additional.fields". - Mapped "AccessControlRuleAction" to "security_result.action".
2024-04-29	Enhancement: - Added support to handle new format of ingested logs.
2023-09-21	Enhancement: - Mapped "proto_type" to "network.ip_protocol". - Added validation checks before mapping "entry.agent.type". - Removed repetitive code for "recordTypeCategory" and mapped "recordTypeCategory to "metadata.product_event_type". - Mapped "severity_code to "security_result.severity". - Mapped "service_type", "syslog_facility_code", "syslog_priority" to "additional.fields". - Mapped "entry_msg" to "metadata.description".
2022-10-01	Enhancement: - Migrated customer specific to default parser.