* 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
Shin Yamamoto
00ce232420