Add unit tests for the `lgtunit::quick_check/1-3` utility predicates
Add unit tests for the `lgtunit::quick_check/1-3` utility predicates

LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3,LogtalkDotOrg/logtalk3