* Added new ErrorReporter to store all grule's GRL parsing errors

* Updated README.md to removed featured product and added comment in the GrlParseErrorDetection_test.go so reader can easily understand how to use ErrorReporter

* Added in function

* Added lots of documentations of new features

* Fixing linting issue for GruleEngineListener

* Fix very minor logic bug

* avoiding go mod tidy issue https://github.com/golang/go/issues/44557 that CI pipeline to fail