Add RefChecker logic for reference validation Relates to #13604 #10141

Job	Run time
format	2m 18s
OpenRewrite	5m 40s
format-javadoc	13s
Dependency Scopes	4m 16s
upload-pr-number	5s
Checkstyle	4m 29s
Unit tests (Windows) - file-based	45s
JabKit Smoke Test	10m 0s
CHANGELOG.md - only unreleased touched	38s
Modernizer	9m 46s
JavaDoc	3m 57s
publish	-1s
Unit tests – jabkit	4m 23s
Unit tests – jabsrv	3m 23s
Database tests	4m 43s
Unit tests – jablib	10m 2s
Validate requirement coverage	6m 11s
Unit tests (Windows)	-1s
CHANGELOG.md	16s
Unit tests – jabgui	6m 44s
Validate Gradle Wrapper	12s
Markdown	14s
JBang (PR) (.jbang/JabKitLauncher.java)	4m 50s
JBang (PR) (.jbang/JabLsLauncher.java)	5m 6s
JBang (PR) (.jbang/JabSrvLauncher.java)	4m 56s
JBang (PR) (jablib-examples/jbang/doi_to_bibtex.java)	5m 20s
JBang (PR) (jablib-examples/jbang/ieee_pdf_references_to_bibtex.java)	5m 48s
Code coverage	-1s
JBang (main)	0s
Maven examples	0s
	1h 44m 12s

Provide feedback