Feature Request: Add prop for navigation mode

[nice-ctrl]

As said in title, a prop for selecting whether the navigation should be in walking, cycling, or driving mode would be greatly appreciated.

[mariovillamizar]

@nice-ctrl yes this is weird, because they even mention it in the README file:

Did you find a solution for this? I really need it in 'walking' mode.

[in2progress]

@nice-ctrl, @mariovillamizar - For iOS(not looked at the android side of it yet but should be straightforward) - I would recommend you fork this repo and make some modifications to MapboxNavigationView.swift and MapboxNavigationManager.m.

I have been able to do this with a local clone for testing.

Add a property (i named mine "mode")
MapboxNavigationManager.m
RCT_EXPORT_VIEW_PROPERTY(mode, NSString)

Add the new mode variable and some logic in the embed function to handle the mode property and update the Mapbox ProfileIdentifier accordingly.
MapboxNavigationView.swift

....
@objc var mode: String = "car"
....
private func embed() {
 ....
var profileIdentifier:ProfileIdentifier = .automobileAvoidingTraffic
      if mode == "walk" {
        profileIdentifier = .walking
      }
      if mode == "cycle" {
        profileIdentifier = .cycling
      }
    // let options = NavigationRouteOptions(waypoints: [originWaypoint, destinationWaypoint])
    let options = NavigationRouteOptions(waypoints: [originWaypoint, destinationWaypoint], profileIdentifier: profileIdentifier)
.....
}