Modify the method IntWalk_IWalking::TestArretCadre: correct the value of scalar product of two vectors according to the tolerances in U and V.
New folder "hlr" with subfolders "exact_hlr" and "poly_hlr" has been created. Draw command "vcomputehlr" has been corrected. QA command "OCC27341" has been deleted as "vcomputehlr" does its job.