Support real-time updated wheelchair accessibility for trips

[flaktack]

Summary

This allows the wheelchair accessibility of trips to be updated using GTFS-realtime. To do so the wheelchair accessibility information is added to TripTimes.

The proto changes are proposed in google/transit#340

BKK (Budapest, Hungary) has a GTFS-realtime TripUpdates feed which includes these values (txt / pb)

Issue

closes #4252

Unit tests

The existing filtering unit tests are updated.

Documentation

No changes.

[leonardehrenfried]

Can you also update the value used in the cost-based wheelchair routing?

OpenTripPlanner/src/main/java/org/opentripplanner/routing/algorithm/raptoradapter/transit/request/TripScheduleWithOffset.java

Line 76 in 6e2067a

return pattern.wheelchairBoardingForTrip(tripIndexForDates);

[leonardehrenfried]

Please take the cost-based routing into account.

[leonardehrenfried]

Can you also update the value used in the cost-based wheelchair routing?

OpenTripPlanner/src/main/java/org/opentripplanner/routing/algorithm/raptoradapter/transit/request/TripScheduleWithOffset.java

Line 76 in 6e2067a

return pattern.wheelchairBoardingForTrip(tripIndexForDates);

[flaktack]

Can you also update the value used in the cost-based wheelchair routing?

OpenTripPlanner/src/main/java/org/opentripplanner/routing/algorithm/raptoradapter/transit/request/TripScheduleWithOffset.java

Line 79 in ed408e9

return pattern.wheelchairBoardingForTrip(tripIndexForDates);

This should already be handled -- which code path have I missed?

The linked code calls:

OpenTripPlanner/src/main/java/org/opentripplanner/routing/algorithm/raptoradapter/transit/request/TripPatternForDates.java

Lines 266 to 268 in ed408e9

	public WheelchairAccessibility wheelchairBoardingForTrip(int index) {
	return wheelchairBoardings[index];
	}

Which is filled-up per-request in the constructor using TripTimes:

OpenTripPlanner/src/main/java/org/opentripplanner/routing/algorithm/raptoradapter/transit/request/TripPatternForDates.java

Lines 98 to 99 in ed408e9

	for (var trip : tripPatternForDates.get(d).tripTimes()) {
	wheelchairBoardings[i] = trip.getWheelchairAccessibility();

[leonardehrenfried]

I'm a bit stupid. Sorry for the confusion.