Public test suite for compatibility check

[aqrln]

In order to ensure that our JSTPMobile/iOS, JSTPMobile/Java, DzyubSpirit/JSTPHaskell and possibly any other third-party implementations do the serialization and parsing and form packets correctly, we need a public test suite for conformance check.

[nechaido]

@aqrln we could probably close this because we now have test/fixtures

[lundibundi]

@nechaido I think it's not appropriate to call them as such, even though third-party implementation should comply with some of them. Because they still are format specific to the js implementation, I think we should come up with some sort of format for the cases or at least remove js specific parts (such as export), also not all of those tests should be checked against and in my opinion it's better to put them in at least separate directory.