use iter0 vertices instead of PixelVertices
use Iter0PV also in trackSelector
remove pixelTracks and Vertices for Good
fix FastSim and Validation
make only one collection (w/o BS)
remove commits
remove useless vertex collection in fastsim as well
Merge pull request #5476 from VinInn/Iter0PV

Replaced pixelVertices by firstStepPrimaryVertices made from iter0 tracks