Extract Number Wrappers about smallcheck HOT 2 CLOSED

Yeah, I think I'd be open to that. My two concerns are:

1. Ensuring that this new package itself is lightweight — i.e. it doesn't add any other transitive dependencies to smallcheck.
2. Ensuring that the new package doesn't break/bitrot (transitively breaking smallcheck with it). If you add me or someone else with a track record of quickly fixing broken packages to the list of backup maintainers of hackage, that would be enough.

from smallcheck.

Closing, since nick8325/quickcheck#286 did not see much traction.

I suggest exporting types from smallcheck and defining orphan instance Arbitrary, see https://github.com/Bodigrim/arithmoi/blob/master/test-suite/Math/NumberTheory/TestUtils/Wrappers.hs#L56 and below.

from smallcheck.