Changelog for posit-3.2.0.2

Changelog for Posit Numbers

Added FlexableContexts back in to Posit.hs, a build error occured on GHC-9.2 that didn't occur with GHC-9.0 or GHC-8.10

Refactored IntN Type Family to be a closed type family instead of an associated type family
Refactored IntN constraints to use ConstraintKinds and made that to be a Super Class of PositC to improve the encapsulation the Constraints of the internal implementation
Refactored PositC to make use of ConstrainedClassMethods vastly reducing code duplication
Eliminated the FlexableContexts Language Extension from Posit.hs Interface, since the InN constraints no longer bleed into that file
Added test of Heegner numbers (almost integers)
Added test of various Gamma Function approximations
Improved function names in the Orphan Instance for Storable ( Word128 )
Improved documentation

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