[new] aurora.js framework

Source:
+ https://github.com/audiocogs/aurora.js
+ https://github.com/audiocogs/mp3.js
+ https://github.com/audiocogs/flac.js
+ https://github.com/audiocogs/alac.js
+ https://github.com/audiocogs/aac.js

The `package.json`s lack auto-update configs as neither the GitHub repos nor the NPM tarballs contain any browser deployables.