Add Laravel-inspired Quick model factories

[elpete]

Summary

• add Laravel-inspired Quick model factories under quick.resources.testing
• support definitions, overrides, named and closure states, counts, sequences, attribute closures, and lifecycle callbacks
• construct application factories and entity providers through WireBox while persisting exclusively through Quick entities
• keep factory code isolated from normal module startup so resources/testing can be excluded from production artifacts
• document transaction ownership and the test-base factory helper pattern

Testing

• Lucee 5 focused factory integration suite: 6 passed
• Adobe 2021 focused factory integration suite: 6 passed
• native BoxLang 1 focused factory integration suite: 6 passed
• Lucee 5 complete suite: 608 passed, 3 skipped, 0 failures, 0 errors
• box run-script format:check
• git diff --check