Tracking getByToken migration, part 0.1 (DeDx, IterativeTracking, FinalTrackSelectors)

getByToken migration in many tracking modules.

First set of tags, with no external dependencies

Notes:
 - some modules not running in the default sequence have not been migrated
 - the getByLabels done through the ClusterRemovalRefSetter have not been migrated, as to my knowledge they're obsolete, and they're not trivial to do (the tag is known only at runtime). A call to consumesMany<T> might be added if those are needed.