Feat: Create `Dart` Package for `Flutter` Example

[nelsonic]

We already have these quotes exported as a Hex and NPM package. ✅
Now we would like to:

• Export quotesy as Dart package.

Looks like the https://pub.dev/packages/quotes is already taken ...
(though not maintained ... https://github.com/rohanprasadofficial/quotes 🙄)
So we might need to name it quotesy again (like the NPM module)

https://pub.dev/packages/quotesy

• Add docs for how to use the Dart package in README.md

Thankfully we have already done this: https://github.com/dwyl/dart_cid
So I don't expect this will take tooooo long. ⏳ 🤞

@LuchoTurtle this would be in preparation for "How to use statuses in Flutter?" dwyl/statuses#10 💭