Add core and unlockable exercises to configuration
Add core and unlockable exercises to configuration

mienaikage/exercism-perl6,mienaikage/xperl6,exercism/xperl6,mienaikage/exercism-perl6,mienaikage/xperl6,exercism/xperl6,mienaikage/xperl6,mienaikage/exercism-perl6,exercism/xperl6