Add initial protocol test generation (#16)

* Implement Instantiator

* Add support for dev-dependencies

* Pass the protocol in Protocol config

* Add initial protocol test generator

This commit adds an initial and very limited implementation of protocol test generation. Specifically,
it only asserts that the query string contains certain required parameters. We will update protocol test generation in concert with updates to the code generation features.

* Fixes from integration tests

* Add test of recursive maps, fix implementation of empty maps

* Add protocol test generator, pre-commit hooks

* Fix test

* Fix formatting