Merged requested to merge prefer_thor_over_loki_selectors into master
- replace the use of ITrackSelector and IProtoParticleFilter with ThOr functors
- add some new ThOr functors to replace some LoKi functors in the above cases
- increase type-safety in 'TrackType' ThOr functors.
must be applied together with Moore!1926 (merged), Analysis!938 (merged), DaVinci!799 (merged), Alignment!332 (merged), MooreOnline!193 (merged), MooreAnalysis!99 (merged), Panoptes!209 (closed)