Fix an issue where bottomTab.testID doesn't get updated on mergeOptions unless a new UITabBarItem is created. Look like an issue in iOS where tabBarItem.accessibilityIdentifier doesn't get updated unless a new tabBarItem is created.

Refactor bottomTabs options applying mechanism. Both bottomTab and bottomTabs presenters were part of the base UIViewController class which was wrong. This commits moves them to the BottomTabsController.

This refactor mostly contains the following

* Detach bottomTabPresenter from basePresenter
* Create tabBarItem appearance on presenter init
* Refactor bottomTabPresenter
* Refactor bottomTabPresenter
* Move appearance creation to bottomTabsController
* Merge child options with direct child controller

This commit fixes issues with BottomTabs text color on iOS 13

* Extract bottomTab options from base presenter
* Add iOS 13 appearance support for bottomTabs and bottomTab

* 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

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.