matching: multi match support

[securitym0nkey]

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This is an implementation of redmine 2509

Describe changes:

This is a resubmit of pr #37. After reworking to fit the 2023 code base.

It adds support to specify multiple conditions to match a rule.

Syntax: multi:<match_condition1>;<match_condition2>;...<match_conditionN>;

Examples: Match all rules including the term "nmap" but just from the "emerging-scan.rules" file. multi:filename:rule/emerging-scan.rules; re:nmap;

Match all rules with a recent cve reference and a perimeter deployment multi:re:cve-202[23];metadata: deployment perimeter;