* Clean up Samples and Maps examples
* Rename the root view controller in Maps/Stocks/SampleObjC examples
* Reorder resource file references
* Rename examples' bundle ids with `example` domain.
* Remove 'Run Script' to modify CFBundleVersion: now this has not been used for testing since unit tests were added
* Revise methods to handle content view controllers in UseCaseController
* Fix a bug on PagePanelController
* Add UseCaseController
* Add Layouts.swift
* Add PagePanelController
* Append access modifiers into some objects
* Split view controllers into each file
* Organize the project
* Rename currentMenu with currentUseCase
* Rename SampleListVC with MainVC
* Update UseCase enum
* Update DebugTableViewController to test the scroll (un)tracking functions