ansi-wl-pprint compatibility package

This package defines a compatibility layer between the old ansi-wl-pprint package, and the new prettyprinter/prettyprinter-ansi-terminal ones.

This allows easily transitioning dependent packages from the old to the new package, by simply replacing ansi-wl-pprint with prettyprinter-ansi-terminal in the .cabal file.

Note that this package is only for transitional purposes, and therefore deprecated and wholly undocumented. For new development, use the current version of prettyprinter, and the ANSI terminal backend provided in prettyprinter-ansi-terminal.