Add phet-core/js/copyWithSortedKeys.js as a new preload and use it to sort keys for phet-io metadata, see https://github.com/phetsims/phet-io/issues/1446
Add phet-core/js/copyWithSortedKeys.js as a new preload and use it to sort keys for phet-io metadata, see https://github.com/phetsims/phet-io/issues/1446

phetsims/fraction-matcher,phetsims/fraction-matcher,phetsims/fraction-matcher