Make it official

Support Crystal 1.0.0, and improve maintanability with Github Actions.

Improve performances and simplify API

Improve decoding by a x3 factor and encoding by a x5 factor 🚀.

Switch from the Location structure to NamedTuple. It is enough, and now the API can accept way more than just tuples:

Polylines.encode([{lat: 38.5, lng: -120.2}, {lat: 40.7, lng: -120.95}])
Polylines.encode([[38.5, -120.2], [40.7, -120.95]])
Polylines.encode([{38.5, -120.2}, {40.7, -120.95}])

First Release!

Already a working module with both .encode and .decode available and working.