Similar to Baseplate.py [1] [2] and edgecontext, we should move `experiments` package out of Baseplate.go so it can be updated on its own cadence. Since this will be a breaking change, 0.9.0 would be a good opportunity to do it. [1]: https://github.com/reddit/baseplate.py/commit/001862caa16d07c4bab6bd3b9a17d8f9cdc10dbc [2]: https://github.com/reddit/experiments.py
