fix problems with Trk::Track
- fix clusterOnTrack->prepRawData() function to get Tracker::FaserSCT_Cluster from Trk::Track
- add fitQuality (chi square, number of degrees of freedom) to Trk::Track
- create separate tool to create Trk::Track from output of (combinatorial) Kalman filter which is used by CKF2 and KalmanFitterTool