Change menthod name overwiewHomePage to genrePage

Change in all method returned value /musicplayer/show_song to
musicplayer/show_song
Add MusicServiceImpl

Add to method setUp - save Song to database

Add method testGenrePage

Add method testAlbumPage

Add method testArtistPage

Add method testPlaySong
remove unused import
move bean userSettingsController to category bean
first Commit