[Feature Request]: Expose Location.hasBearingAccuracy() from Android platform

### Is there already an issue requesting this feature?

- [X] I have searched the [existing issues](https://github.com/baseflow/flutter-geolocator/issues).

### Please select affected platform(s)

- [X] Android
- [ ] iOS
- [ ] Linux
- [ ] macOS
- [ ] Web
- [ ] Windows

### Use case

It would be nice to have the Android `Location.hasBearingAccuracy()` call exposed to Flutter, as we were filtering out inaccurate heading readings using `Position.headingAccuracy`, but on some devices this always = 0.0 if `Location.hasBearingAccuracy()` returns `false`, so on those devices, we're throwing away all readings.

### Proposal

An extra field in `geolocator_platform_interface-4.2.2/lib/src/models/position.dart` to flag whether the device has bearing/heading accuracy available.

### Specific requirements or considerations

_No response_

### Additional information or context

_No response_

Start in geolocator_platform_interface-4.2.2/lib/src/models/position.dart and trace how Android Location data reaches the Flutter Position model. Check the Android platform entry point for Location.hasBearingAccuracy(); done means Flutter exposes whether bearing or heading accuracy is available, including the relevant platform data flow.

Written by the indexing model from the issue text.