Moved CircleTraj and BrokenLineTraj from LHCb to Run2support

These are needed respectively by VeloDet and STDet but no more in the Run 3 code

Part of the following set of MRs : Detector!110 (merged) LHCb!3294 (merged) Rec!2594 (merged) Phys!1003 (merged) Boole!363 (merged) !18 (merged)