Apply fix for point.h / point.C which forces point.h / point.C to
conform to const-correctness. I suspect this will increase speed in
many areas of AMS code.
Make several functions in TrdKHit obey const correctness.
Made references to HasTRDTrack involve boolean values to make it more
clear.
Remove a SetCorridorHits call when it wasn't needed.
Add classes
Merge branch 'master' into mkrafczy/TrdKModifications