添加扩展

[bviibvii]

直接把CryptoJS塞进去了，让扩展可以调用SHA家族的哈希算法和AES等对称加密算法

[kukemc]

让你提交扩展没让你直接删库啊😂

[skydog221]

没让你删库啊，真当HCN不做code review是吧
main.js不是拓展文件，你的拓展文件应该放在extension/${USERNAME}/${extensionName_en}里

[fath11]

I do not recommend this PR to be merged. The author has to make a new PR that doesn't delete the whole library.

[skydog221]

I do not recommend this PR to be merged. The author has to make a new PR that doesn't delete the whole library.

I also have the same suggestion, but for more than one reason. The author says that this expanded feature uses SHA and AES, which is not necessary in actual scratch programming, let alone the related "encryption" functions already available in the Aroks series extensions. I believe that this extension should not be merged into Github but should be available as a custom extension option in the "extensions experimental plaza".