buildTravelEstimate
Builds a TravelEstimate with remaining distance, time, and ETA.
The TravelEstimate is associated with a Destination and shows:
How far until arrival
How long until arrival
What time you'll arrive
This method is intentionally public open (not protected) because it is called directly by AA screens (e.g., AndroidAutoNavigationScreen) to build the destination travel estimate for the NavigationTemplate, independently of buildTrip.
Return
TravelEstimate with available data, or a minimal estimate if parsing fails
Parameters
guidanceState
The current guidance state