Enforce lint rules with eslint - Also add a pipeline to check lint on each PR

[MadhavBahl]

[fastboot]

Hey, @MadhavBahl would like to work on this can you assign it to me? Also what all lint rules should be enforced if you can list them that would be helpful. Thanks!

[MadhavBahl]

Thanks @fastboot ,
We can go ahead with the usual AirBnB config

[fastboot]

Hey, @MadhavBahl have raised a PR had a couple of question let me know what you think?

1. Should I add lint checks for push as well?
2. For now I used the To check syntax, find problems, and enforce code style option, let me know if you just need to check and find problems and not enforce code style.

Here's the PR have a look: Link