Initial point from the response is different than first from waypoint

Nobody has claimed this yet.

**Steps to reproduce:**
```
let coordinates = [
CLLocationCoordinate2D(latitude : 32.892264999999995, longitude : 13.177763000000002),
CLLocationCoordinate2D(latitude : 32.89241945002732, longitude : 13.177979323297292),
CLLocationCoordinate2D(latitude : 32.89113899999998, longitude : 13.208977000000008)
]
let waypoints = coordinates.map { Waypoint(coordinate: $0, coordinateAccuracy: -1) }
let options = NavigationRouteOptions(waypoints: waypoints, profileIdentifier: .walking)
Directions.calculate(options) { _, routes, error in
let route = routes.first // api returns only one route
print(route.coordinates)
}
```
**Expected behavior**
First point from returned route is first coordinate.

**Actual behavior**
First point from returned route is second coordinate.
```
▿ 0 : CLLocationCoordinate2D
- latitude : 32.893127
- longitude : 13.178129
▿ 1 : CLLocationCoordinate2D // I assume that some interpolation is done here
- latitude : 32.892265
- longitude : 13.177763
▿ 2 : CLLocationCoordinate2D
- latitude : 32.892295000000004
- longitude : 13.177812000000001
▿ 3 : CLLocationCoordinate2D
- latitude : 32.892314000000006
- longitude : 13.177851
▿ 4 : CLLocationCoordinate2D
- latitude : 32.89238700000001
- longitude : 13.178065
▿ 5 : CLLocationCoordinate2D
- latitude : 32.89241400000001
- longitude : 13.178136
(...)
```
**Configuration**
Mapbox-iOS-SDK: 5.4.0
Mapbox Navigation 0.38.1
iOS versions: 13.3
Device/simulator models: all
Xcode version: 11.3

Reproduce the issue with the shown CLLocationCoordinate2D values, Waypoint setup, NavigationRouteOptions, and Directions.calculate call. Inspect how route.coordinates is produced and how the initial waypoint is handled. Done means the returned route begins with the first coordinate and the behavior is covered by a regression check.

Written by the indexing model from the issue text.