Using the placemark/polyline package

[clementmas]

There's a new polyline package from Placemark:

• https://github.com/placemark/polyline
• https://github.com/mapbox/polyline

As highlighted in the readme, it is maintained, it uses [lon, lat] order, it doesn't have any depencencies and it is typed.

Using it would simplify the decoding process from decode(geometry).map((coordinate) => coordinate.reverse()) to decode(geometry).

I'd like to use it in my own codebase but I don't want to use both since Mapbox's package is a dependency of maplibre-gl-directions.

So it'd be great if you would consider switching packages.

[smellyshovel]

@clementmas sounds reasonable enough to me.
I'm gonna become busy implementing the support for dynamic routing profiles soon, so a PR for this idea would be very welcome.

[smellyshovel]

Closing as complete by #214. Thanks, @clementmas, for the idea and the implementation!