[Plan] No dependencies

[septs]

1. [ ] Remove Buffer class using
2. [ ] Builtin Base64 Encoding
3. [ ] Builtin UTF8 - UCS2 Encoding

References:

• https://github.com/mathiasbynens/utf8.js
• https://stackoverflow.com/a/57111228

[septs]

requires Base64 without UTF-8 encoded