add implementation of the change from const vector<*> to vector< const*>
move GuessSensorID to getSensorIDfromHit
renamed call to GuessSensorID to getSensorIdfromHit
move large histogramming code into a method "plotTracks", adjsut to vector<const* IMPL::TrackImpl>

+        void plotTracks(LCEvent *event);
rename call to GuessSensorID to getSensorIDfromHit

-    const int localSensorID = Utility::GuessSensorID( static_cast<IMPL::TrackerHitImpl*> (hit) );
+    const int localSensorID = Utility::getSensorIDfromHit( static_cast<IMPL::TrackerHitImpl*> (hit) );
do not drop hit filtered collection, it is needed to refer in the tracks (!)