Explore representing non-object-like formats

[jzelinskie]

I spent a little time trying to see if I could generically support asn.1.

I found that supporting it would probably mean actually having schemas for various things that are encoded in that format (e.g. CAs, private keys). I think supporting files like these would be a huge boon to debugging, but also complicate the project to the point where it almost seems like a different goal: representing everything as JSON (or more generically "objects").