Mouse Controls

[superpowers04]

Adds basic mouse controls to Freeplay, MainMenu and StoryMenu
Also hides freeplay options you can't see. In my experience this can help a TON with lag when you have a bunch of songs

[ItsLJcool]

I personally don't like the idea of being able to just go to MainMenuState whenever, cuz you can easily add this to your mod, and if you really are stuck in a ModState or in a state you can't exit, its really easy to leave its literally this:

function update(elapsed:Float) {
    if (controls.BACK) FlxG.switchState(new MainMenuState());
}

super easy.

I agree with Mouse Controls being in CNE, but most mods override the menu. I don't see the point in adding it anyways.