Add simHit index to PixelDigiSimLink edit & compile
hitAssociator uses CFpos for pixels; endJob->endStream in validation classes
Remove time-wasting vector copy and redundant maps
Tweak on Remove time-wasting vector copy and redundant maps
hitAssociator consolidate duplicate map construction
Merge in speedup and consolidation from the simLinkStrips branch
Minor changes and a cout
Add globalPtr++ in digitizer; hitAssociator uses CFpos for pixels too
PixelDigiSimLink provides simHit index; used in hitAssociator
Comment out loop associated with debug couts
Make associateHitbySimTrack a tracked param via existsAs
Merge pull request #4711 from wmtford/newPixelSimLink

New pixel sim link