Incorporate Erlex?

Hi all.

I'm one of the maintainers of the Dialyxir project, and recently completed a large effort of brute force reverse engineering Dialyzer error messages and it resulted in new formatting of warnings [here](https://github.com/jeremyjh/dialyxir/tree/master/lib/dialyxir/warnings). The heavy lifting of this is done by a library I extracted called [Erlex](https://hex.pm/packages/erlex). May be worth incorporating some of this work into Dialyzex so that consumers have nicer messages.

Feel free to close this, but I can honestly say after having seen nicer Dialyzer output for the past few months, I refuse to go back to default Dialyzer output, and think consumers of your library would be very pleased with some of the improvements now possible.

Cheers,
Andrew