Added Custom Login Screen UI
Added Create User screen
Added Navigation Bar to Manual Login screen
Created custom UIViewController instances to manage screens
Updates for AutoLayout constraints in Login section
Added event handler for create user button
Updated Storyboard to allow Segue back to main app
Completed updates for create user section
Merge branch 'LoginNavigationController'

Conflicts:
	iOS/ScorePredict/ScorePredict.xcodeproj/project.xcworkspace/xcuserdata/xximjasonxx.xcuserdatad/UserInterfaceState.xcuserstate