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转码 GB2312
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.greasyfork.icu/scripts/368137/601683/encodeToGb2312.js
This code is from https://github.com/liuxiaodong/encodeToGb2312
You can use like:
var result = encodeToGb2312("字符串转GB2312");
result: D7D6B7FBB4AED7AA474232333132
var result = encodeToGb2312("字符串转GB2312",true);
result: %D7%D6%B7%FB%B4%AE%D7%AA%47%42%32%33%31%32