Implement more efficient batch rule evaluator (#45)

* mvp

* Fuzz, move to new, correct library

* Use same technique for regexes

* cleanup

* dedupe matching logic

Add JSON struct tags (#39)

Add option to disable case insensitivity (#36)

* Add case sensitive option

* undo formatting

Migrate modifiers to an exported interface (#35)

Expose position information for key rule parts (#34)

* Expose raw yaml.Node for certain rule fields

* Only expose line+column

* Implement custom inlining

* Include Search nodes even in config files

Don't print values if they're already string-like

Implement numeric comparison modifiers (>, >=, <, <=) (#32)

* Add type coercion helper

* Add testcase

* Refactor, add remaining comparators

* Move test up one layer of implementation detail

Update gopkg.in/yaml.v3

Parse the Rule's 'related' keyword as slice of maps (#28)

* Parse the Rule's 'related' keyword as slice of maps

Rules with related keyword fail to parse currently.  This should fix it.

* Use struct type for related rules

Co-authored-by: Bradley Kemp <bradley@bradleyjkemp.dev>

Fix bug in unhandled JSONPath error (#27)

* Gracefully handle JSONPath failures where fields do not exist

* Add testcase