Generate QR Code for any string.
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/535813/1589729/QR%20Code%20Generator.js
Upload of https://github.com/NaeemBolchhi/qrcodegen for User Scripts, to be used as a Library.
