* Fix bottomTabs.currentTabIndex, Closes #5012

* Set currentTabIndex on init

* Fix top bar layout frame, Closes #5003

* Set layout child view controllers on initialization

* Remove duplicate initWithLayoutInfo: function

* Explicitly attach and detach viewControllers in store
* Stop registering components in commands handler

* Remove currentLeaf

* Fix resolve options

* Remove irrelevant test

* Remove RNNRootViewController clear background color

* Fix title with subtitle options

* Apply modalPresentationStyle and modalTransitionStyle on childWillMoveToParent

* Fixes unit tests

* Fixes flaky unit tests caused by OCMock

Added unit test coverage on iOS

* 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