exampleGroupByShppingCSV

! * Group items from an array together by some criteria or value. * (c) 2019 Tom Bremmer (https://tbremer.com/) and Chris Ferdinandi (https://gomakethings.com), MIT License, * @param {Array} arr The array to group items from * @param {String|Function} criteria The criteria to group by * @return {Object} The grouped object