#20 - Added setup for Eslint, prettier, lint-staged and husky

[shra1dhar]

Let me know if you want some specific changes to eslint or prettier config (line width is set to 120 currently) or anything in general.

[prateek3255]

It's not working for me locally, probably because you didn't add eslint-plugin-react, also please remove the package-loack.json from the changes because we use yarn for development