`stack test` and `make test` should only run HSpec

[bitemyapp]

per @parsonsmatt

The only tricky thing we might want to do is make stack test only run the hspec tests, and not the doctest test suite. Or maybe the doctests can just be an executable that we build and run in CI

We should continue to run the doctests in CI but doctests should get flagged out of getting run by default by stack test unless explicitly asked for.