UAX #29 Sentence Boundaries

[Yichao 'Peak' Ji]

Hey @akahuku, thanks for making this awesome library!

Any plan of implementing the Sentence Boundaries section of UAX #29?

[akahuku]

Thanks for the suggestion.
I implemented getSentences().
It passes all 502 test patterns provided by Unicode.org.

[Yichao 'Peak' Ji]

@akahuku 👍👍👍