changelog for v2.0.0-beta.9.2

fix turn icons and roundabout logic (mapbox#4445)

Navigation SDK v2.0.0-beta.10

Bug fix. When calculating route line traffic expression data the dist…

…ance from origin value for items is set to 0 only for the first point rather than each leg's first point.

 - Update API

Mapbox Navigation SDK v2.0.0-beta.8

Add changelog for 2.0.0-beta.7

Navigation SDK v2.0.0-beta.6

Navigation SDK v1.6.1