The backButton options are always applied. Even when one of its values has changed in mergeOptions.
This commit adds a function to apply the backButton, and should probably replace the existing rnn_setBackButtonIcon - as that function does more than just set the icon, it sets all options.

* bind viewController to presenters using bindViewController

* Merge options to the specific provided layout

* Moved custom titleView creation to RNNRootViewController

* Moved default options to presenters, moved options applying to presenters, resolved options in RNNOptionsResolver

* Fixes merge options

* Fixes topBar transition on pop

* Prevent titleView creation when react titleView exists

* Fixed unit tests

* Options refactor WIP

* Detach applied options from DTO - WIP

* Added option types and option parsers

* Unit test passes

* Added presenters for each parent type

* Fixes unit tests

* Rename StringParam to Text, changed bottomTabs.drawBehind and topBar.drawBehind default to false

* set layout.backgroundColor default to white

* Added unit tests for RNNViewControllerPresenter

* Set layout.backgroundColor default nil

* Fixes buttons color missing options

* Fix unit test

* fix button color parsing

* Moved default options to presenters

* default options fixes

* Fixes e2e

* Fixes unit tests

* Resolve child options on childWillAppear

* Recrusively setDefaultOptions on rootViewController tree

* Fixes default values

* Fixes tests

This reverts commit f2635f1116.

* Removed possibleOpenGesture MMOpenDrawerGestureModePanningCenterView possibleOpenGestureModesForGestureRecognizer. This allows swipeable componenets like swipeable lists to be used on iOS.

* Revert "Removed possibleOpenGesture MMOpenDrawerGestureModePanningCenterView possibleOpenGestureModesForGestureRecognizer. This allows swipeable componenets like swipeable lists to be used on iOS."

This reverts commit f2500be9f7.

* Revert "Removed possibleOpenGesture MMOpenDrawerGestureModePanningCenterView possibleOpenGestureModesForGestureRecognizer. This allows swipeable componenets like swipeable lists to be used on iOS."

This reverts commit f2500be9f7.

* Allow styling of default back button on iOS.

* Refactored backButton api

* Move StackController to separate package

Implement BackButtonOptions

* Somewhat simplify StackController creation in tests

* Pull backButton logic from StackController

* Handle all TopBar button options in TopBarButtons

* fix back button on iOS