[Feature request]: add paddingAdjustmentBehavior parameter on iOS

[bderrien]

Is there an existing issue for this?

• I have searched the existing issues

Use case

We want to change the paddingAdjustmentBehavior from 'always' to 'never' to have the same logic than android (to have the overlay buttons at the same position)

Proposal

add initialPaddingAdjustmentBehavior param on GoogleMapsMapView and GoogleMapsNavigationView