[ArucoThread] update methods to use osg::Vec3d and osg::Quat instead of QVector and QQuaternion, that caused problems. Add also correction oh centering y-axis in translation vector from aruco.
[CameraManipulator] add updateArucoGraphPosition() method with simple vector as parameter, that is alternative to existed one, that use matrix. The new one has also changed method of computing translation of graph from position of marker.
[CoreGraph] add updateArucoGraphRotation() slot with osg::Quat as parameter, that is alternative to existed one, that use matrix for computig quaternion and matrix again, so new one is simpler and faster. Add also getCoreGraph method to core/Core class for getting pointer on CoreGraph instance, that will be needed for connectig added slot in CoreGraph class.