[android] fetching zoom result after pinch

[swsong12]

**Platform: android
**Mapbox SDK version:6.2

Steps to trigger behavior

Is there any method to fetch the result zoom after pinch? Or is this a feature that could be implemented in the future?

Expected behavior

1. User pinches to zoom

Actual behavior

2. Returns resulting zoom level from the pinch

[stale]

This issue has been automatically detected as stale because it has not had recent activity and will be archived. Thank you for your contributions.

[stale]

This issue has been automatically detected as stale because it has not had recent activity and will be archived. Thank you for your contributions.