Add clamping naturalToWord function.
Motivation
See https://mail.haskell.org/pipermail/libraries/2020-September/030783.html
Proposal
ghc-bignum should provide an efficient function to convert from Natural to Word with clamping.
See https://mail.haskell.org/pipermail/libraries/2020-September/030783.html
ghc-bignum should provide an efficient function to convert from Natural to Word with clamping.