Using hyphenation patterns from https://github.com/santhoshtr/hyphenation.
The tests here are implemented as Mozilla reftests rather than added to WPT because I don't think
we can reasonably have such tests in WPT. The specific set of languages for which the UA supports
auto-hyphenation is not a normative requirement, and nor is the particular dictionary or algorithm
that will be used for any specific language. As such, the exact results are not defined by the
spec. (They may also change over time, if the hyphenation rules we use are updated, in which case
the tests will have to change accordingly.)
Differential Revision: https://phabricator.services.mozilla.com/D133558
