Break all the PRs :(

iOS and Android code base used different naming conventions - this commit aims to unify naming conventions. I probably missed a few properties here and there so this will be an ongoing effort.

* Remove currentLeaf

* Fix resolve options

* Remove irrelevant test

* Remove RNNRootViewController clear background color

* Fix title with subtitle options

* Layout changes

* WIP

* Revert "Layout changes"

This reverts commit 4da8cfbd12.

* Clean topBar.component and topBar.background.component when not needed

* Move custom components login from viewController to presenters

* Change waitForRender and enabled property from primitive bool to Bool object

* Fix ios unit tests

* Add unit tests

* Remove RNNReactView observer when view ready

* Load react components from component manager

* Remove createCustomReactView duplication

* Handle render children in each Layout

* Wait for navigation presenter components render, refactor RNNTitleViewHelper

* Fix unit tests

* Add waitForRender for custom react components

* Fixes e2e

* refactored navigation options

* test fix

* better namings