ESLint plugin for abell

**Is your feature request related to a problem? Please describe.**
ESLint is the most popular javascript linter. Since abell is executing a lot of javascript in the `.abell` files, it would be awesome if you can allow eslint to be used with abell

This might also allow for a good linting solution for abell altogether

**Describe the solution you'd like**
Make a `eslint-plugin-abell` which allows usage of abell files with eslint.

This will need a bit more exploration of eslint and we can see if that can even achieve this or not.