Add YouTube Live Streaming API list methods (#16)

* Add live methods

* add schemas for Live methos

* Add methods to docs

* add SuperChatEvents

* add live-streaming-api

* remove unused const

* remove repeated code

* Update maintained badge on README

* remove the methods from youtube-deno.ts

* address the changes

Co-authored-by: Aksh Gupta <akshgpt7@gmail.com>

Fix lint errors

Update README.md

Merge pull request #10 from humancalico/patch

setup GitHub Actions, add ignore directives for deno lint

Merge pull request #10 from humancalico/patch

setup GitHub Actions, add ignore directives for deno lint

Update README.md