Add husky to execute prettiere / eslint on commit / push

It would be nice as a contributor to not have to remember executing eslint/prettier locally or wait for the tests to pass on github.

## Idea

1. Run prettier on commit
2. Run eslint and tests (unit tests) on push

This way you can not create a PR, unless you fix those problems.
You can always bypass this using `--no-verify` on commits and PRs