Adding wordlists to this repo

Diffenator2 uses wordlists in order to check for font regressions. I currently include these wordlists its repo, https://github.com/m4rc1e/diffenator2/tree/main/diffenator/data/wordlists (repo will move to googlefonts/ soon).

I'm very tempted to move this data to this repo so more people can benefit from it without having to install diffenator2 and its dependencies. Another solution is to make a new repo just for these wordlists. This may make more sense since it's going to be a fair chunk of data and the words have been constructed from Wikipedia which has a CC license.

cc @madig @simoncozens