Roadmap: merge node-soda2-parser into this library

[timwis]

This is definitely not an MVP need. But I think node-soda2-parser may be overkill. It makes more sense when trying to convert Socrata/SQL to something like Esri's API, but considering how similar Socrata's API is to vanilla postgres, I think we could probably do the job in like..6 regexes...and combining it into this library simply makes maintenance easier (especially by folks who aren't familiar with the 2 libraries and where one leaves off and the other begins).