Added a service with methods to remap SLHC11 tracker DetIds to SLHC13+ ones
Modified SiPixelDigitizer so that it remaps DetIds when using files made in SLHC11 or SLHC12
Moved to a library so that it can be used from other packages
Added DetId remapping to the TrackingTruthAccumulator
Switched to using a persistent remapped collection
Removed some old functions and added documentation
Modified whitespace to make the diffs look simpler. Slightly pedantic.
Add the RemapDetIdService for all the other consumers in the normal sequences
Fixed linking errors by moving the service define out to the plugins library
Merge pull request #4714 from mark-grimes/remapDetIdService2

Remap forward pixel DetIds in files from from old CMSSW versions