Replace traverse with neotraverse

[wojtekmaj]

This PR replaces traverse with neotraverse, a fork and TypeScript rewrite of traverse with 0 dependencies (as opposed to 66: https://npmgraph.js.org/?q=traverse) and lots of improvements.

[PuruVJ]

Thanks a lot for this PR! Left some comments

[thim81]

@VShingala I can recommend switching from the old traverse to neotraverse. It is fully backward compatible and for my NPM project it reduced the children dependencies from 66 to 0.

[VShingala]

Thanks for the contribution! I've checked out the neotraverse and related codebase and it looks good. It's also not breaking any of our existing use-cases so I'm going ahead with merging this.

[VShingala]

@wojtekmaj @PuruVJ I had not checked this till I released the new version of this module but it seems neotraverse is not compatible with older node versions. i.e. Using it with node v16 gave below error. Since this module still supports older versions of modules. I'll revert this change for now and keep the PR open. Once we do come with major version and move out from older version, we can start using this module. But till then, using this module will be breaking change for existing consumers.

error [email protected]: The engine "node" is incompatible with this module. Expected version ">= 18". Got "16.10.0"

[PuruVJ]

Good observation! I just released v0.6.15 with node > 10. Should work now.