* Apply layout.backgroundColor on parent view controllers

* Add layout.componentBackgroundColor

* Remove drawBehind deprecation

* Remove main window backgroundColor
* Better interface for TopBarPresenter

* Migrate project to workspace

This commit moves all unit tests to the playground workspace

* Fix ios unit tests

* Build pods before testing

* Build typescript before running iOS tests

* Remove xcode 10 support

When mergeOptions was called without a title component, existing component was undesirably removed.
This commit changes how component is removed when mergeOptions is called. It will now be removed if a component is not defined and title is defined in mergeOptions.
Fixes #5628

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.

Add support for dot indicator to BottomTabs.

Added unit test coverage on iOS