Change log for INFOBLOX_DNS

Date	Changes
2023-01-19	Enhancement: - Added Grok pattern to support new Syslog. - Added mapping for following: - If log contains any ip protocol, such as TCP or UDP, value is mapped to "network.ip_protocol".. - If log contains any intermediary IP address or hostname, value is mapped to "intermediary.ip/intermediary.hostname".
2022-09-09	Enhancement: - Modified and properly mapped the field 'syslog_timestamp' to 'metadata.event_timestamp'.
2022-08-25	Enhancement: - Mapped the field 'syslog_timestamp' to 'metadata.event_timestamp'. - Added grok and conditional checks for the field 'smac' mapped to 'principal.mac'. - Added conditional checks for the field 'dns_domain' mapped to 'network.dns.questions'. - Added conditional checks for the field 'name1' mapped to 'network.dns.answers.name'. - Added conditional checks for the field 'ttl1' mapped to 'network.dns.answers.ttl'.
2022-07-15	Bugfix - Removed last character if it is dot from network.dns.questions.name, network.dns.answers.name, network.dns.answers.data
2022-06-02	Bug-fix - IP was not extracted properly from syslog log so modified the grok to extract it properly. Enhancement - Provided support for CEF format logs. Mapped the following new fields:- InfobloxB1OPHIPAddress to principal.ip InfobloxDNSQType to dns.questions.type destinationDnsDomain to dns.questions.name InfobloxB1Region to principal.location.country_or_region
2022-04-28	Removed extra word "query:" from "network.dns.questions.name" field.
2022-02-09	Enhancement: Wrote a grok to extract 'hostname' and changed 'event_type'accordingly. - Mapped 'src_host' to 'principal.hostname'. - Mapped appropriate 'event_type'.