Added method for getting a drawable texture in ResourceManager
Added base class for the main menu
Added texture atlas for main menu buttons
Added the  menu background view
Added main menu controller
Added settings view and controller to menu
Added mute and reset buttons to settings view
Added getters for view ui components and implemented listeners in settings controller
Added support for awating the finish of animations before switching sub-menucontrollers
Fixed animation issues when user clicks during an animation
Refactored sub menu animation code to an abstract class
Added dispose method to MenuBackgroundView
Added a Achievements wrapper class, to be used for play services
Added Achievements MVC
Added achievements representations in achievements menu
Implemented dispose method in achievements view
Added leaderboard MVC to menu
Added listener method in LeaderboardsView, buttongroup logic and created listeners in leaderboard controller
Fixed switch bug, when switching between leaderboards
Added the basic Store MVC