Change log for AZURE_GATEWAY

Date Changes
2024-12-05 Enhancement:
- When "properties_action" is "allowed", then mapped "security_result_action" to "ALLOW".
- When "properties_action" is "Blocked", then mapped "security_result_action" to "BLOCK".
- When "properties_action" is "Matched", "Detected", then mapped "security_result_action" to "UNKNOWN_ACTION".
- Mapped "dest_ip" to "target.ip".
- Mapped "hostname" to "target.hostname".
2024-11-05 Enhancement:
- Mapped "instanceId" to "principal.application".
- Mapped "properties.clientPort" to "principal.port".
- Mapped "properties.ruleSetType" to "security_result.detection_fields".
- Mapped "properties.ruleId" to "security_result.rule_id".
- Mapped "properties.message" to "metadata.description".
2024-06-20 Enhancement:
- Added support for a new pattern of unparsed JSON logs.
- Mapped "instanceId" to "principal.application".
- Mapped "sslEnabled" and "upstreamSourcePort" to "additional.fields".
2024-04-19 Enhancement:
- Added support for multiple event JSON logs.
2023-12-22 Enhancement:
- Mapped "resourceid" to "target.resource.id".
- Mapped "properties.operationStatus" to "security_result.category_details".
- Mapped "properties.configuration.Name" to "principal.hostname".
- Mapped "properties.message" to "metadata.description".
- Mapped "properties.configuration.RemoteStie" to "target.hostname".
- Mapped "level" to "security_result.severity_details".
- Mapped "properties.configuration.Ikeversion" to "principal.resource.attribute.labels".
- Mapped "properties.configuration.LocalTunnelEndpoint" to "principal.ip".
- Mapped "properties.configuration.RemoteTunnelEndpoint" to "target.ip".
- Mapped "properties.configuration.LocalSubnets", "properties.configuration.RemoteSubnets", "properties.configuration.VirtualNetworkRanges", and "properties.configuration.VirtualNetworkSubnets" to "principal.resource.attribute.labels".
- Mapped "properties.configuration.VIPAddress" to "principal.ip".
- Mapped "properties.configuration.BgpConfiguration.GatewayConfig.PeerAddress" to "targrt.ip".
- Mapped "properties.configuration.BgpConfiguration.GatewayConfig.PeerType" and "properties.configuration.BgpConfiguration.GatewayConfig.Asn" to "security_result.detection_fields".
2023-11-16 - Newly created parser.