Log message:
devel/hs-wide-word: import hs-wide-word-0.1.7.0

A library to provide data types for large (ie > 64 bits) but fixed width
signed and unsigned integers with the usual typeclass instances to allow
them to be used interchangeably with Word64.

The types and operations are coded to be as fast as possible using
strictness annotations, INLINEABLE pragmas and unboxed values and operations
where appropriate.