pretty-show-1.10: Tools for working with derived `Show` instances and generic inspection of values.

We provide a library and an executable for working with derived Show instances. By using the library, we can parse derived Show instances into a generic data structure. The ppsh tool uses the library to produce human-readable versions of Show instances, which can be quite handy for debugging Haskell programs. We can also render complex generic values into an interactive Html page, for easier examination.