Added method for playing score - very a-rhythmical

src/libs/core/score/tscoreobject.cpp

src/libs/core/score/tscoreobject.h

src/libs/sound/tsound.cpp

src/libs/sound/tsound.h

src/qml/MainMenu.qml

src/qml/MainScore.qml

src/qml/MainWindow.qml

src/qml/score/Score.qml