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

* Support centered bottomTab icons using bottomTabs.titleDisplayMode option

* Improve readability, better namings

* Rename setTabItemImagesCentered to centerTabItems

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