storm-lib: 9.0 (new formula)

[StormLib](http://www.zezula.net/en/mpq/stormlib.html) is a library for interacting with Blizzard's [MPQ](http://en.wikipedia.org/wiki/MPQ) game archives.

Bundling or creating an MPQ for testing seemed out of scope for Homebrew, so it solely attempts to verify the library installed correctly by extracting the version number.