Add contentInsetAdjustmentBehavior property to MGLMapView

[1ec5]

In iOS 11.0, UIViewController.automaticallyAdjustsScrollViewInsets is deprecated in favor of UIScrollView.contentInsetAdjustmentBehavior. automaticallyAdjustsScrollViewInsets has always been a bit of a pain for us, versus how macOS handles the same configuration option, because it’s a property on the containing view controller instead of the view itself. (We have to crawl up the responder chain looking for the view controller just to update MGLMapView’s internal constraints.) MGLMapView should implement its own contentInsetAdjustmentBehavior property that lets the developer indicate whether the MGLMapView itself should adjust the insets automatically.

We’ll have to keep support for UIViewController.automaticallyAdjustsScrollViewInsets around until that property is removed from the (Apple) iOS SDK, in case any developer depends on the currently documented behavior.

/ref #12142 #10485
/cc @friedbunny @julianrex

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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.

[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.