* 'development' of https://gitlab.com/marcel.schwarz/software-projekt-2:
add Label to EntityManager and implement Labels to SettingsScene
add LabelEntity, LabelNode and Labelcomponent - ability to customize and add a Label with animation
add sharedInstance, small cleanup Code
add button to SettingsScene for Background Movement
forgot return type in func getVolume
add button on-off to settingsScene
fix multiple calls from startMenuMusic with static Bool, stop music when enter Game
add SettingsScene with background and music also boolean query for multiple audioplayer start
add backgroundMusic for MenuScene with SoundManager for futher Sound-Management - music with commercial use