Playlist refactoring WIP

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Playlist refactoring WIP

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Playlist refactoring WIP

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Address PMD warnings

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix playlist save on list reorder

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Address PMD warnings

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix playlist creation from playlist menu

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Define list of playlist items in derived class

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Fix removal of playlist items

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>