This PR improves routing results by adding support for snapping to
multiple ways at input locations.
This means all edges at the snapped location can act as source/target
candidates for routing search, ensuring we always find the best route,
and not the one dependent on the edge selected.
* Revert "Remove estimated_cells value in the response."
This reverts commit 364e35af06.
* Update changelog.
* fix linting
* adjust fallback_speed check
* change [].includes to [].indexOf !== -1 for compatibility with node 4
* change param name
* more cuke tests
* fix formatting
* add a multiplier to the matrix
* add rounding
* remove scale_factor restrictions
* clamp for overflow error
* update check to match error message
* enforce clamping on < 0 and increase test coverage
* add an invalid scale_factor value to node tests
* increase test coverage
* changelog
