New menu and more

In this update I've added a couple of important things:

• New main menu.
• A little color change to character selection UI
• Added a backdrop for Scott instead of just plain color. Anthony will get one in a near future. Also you might see a little visual but with Anthony while playing. It's not a big deal I'll mage sure to fix it ASAP.
• Fixed bug which made menu button not interactable.