Changelog for Posit Numbers

posit-3.2.0.0

• Posit Standard 3.2 [Posit Standard] (https://posithub.org/docs/posit_standard.pdf)
• LiquidHaskell support: stack build --flag posit:do-liquid
• To run the test suite: stack test --flag posit:do-test
• To play around: stack repl --flag posit:do-test