https://gist.github.com/andrewroberts/4e848b9670137a2142361e21df7a41d1
FuzzySet (https://glench.github.io/fuzzyset.js/) with a bit of re-packaging for use with Google...
FuzzySet (https://glench.github.io/fuzzyset.js/) with a bit of re-packaging for use with Google Apps Script - FuzzySet.gs