[db9795]

Adds the location of every event as GeoJSON geometry, so the profile can be wired to a map (e.g. drawing the hovered point and the selected stretch of the route) without recomputing anything from distances.

Events

• hover and click: lngLat is replaced by geometry, a GeoJSON Point.
• selection and selectionend: new geometry with the selected stretch of the line. It has the type of the input geometry: LineString for a LineString, MultiLineString for a MultiLineString (one line per part the selection covers, never bridging the gap between two parts).
• Coordinates are [lng, lat, ele], ele in meters like the input (also with units: "imperial"). Positions and elevations are interpolated on the line, including the ends of the selection, so custom calculations can use them directly.
• The ele of the hover point is interpolated, while elevation stays the nearest sample, like the badge.
• New exported types ElevationProfilePointGeometry and ElevationProfileLineGeometry.

Breaking

• lngLat is removed from hover and click. Use e.geometry.coordinates.slice(0, 2) instead.
• Released as minor anyway: the lib has not been public for long

Other

• README (events) and tests updated.
• Changeset: minor.