ApproxInt_Approx, ApproxInt_KnotTools, BRepApprox_Approx,
GeomInt_IntSS, IntTools_FaceFace:
Analysis of curvature is added for adjusting ParametrizationType
IntPatch_Intersection.cxx - adding methods for estimation of UV max step depending on used surfaces
GeomInt_IntSS.cxx, IntTools_FaceFace.cxx - using methods for max step estimation
Approx_SameParameter.cxx - adding control against big values.
BOPAlgo_PaveFiller_6.cxx - adjusting position of faces before intersection
1. New testgrid "lowalgos/intss" has been created. It will contain all test cases on geometrical intersection of two surfaces ("intersect" DRAW-command) and two faces ("bopcurves" DRAW-command).
2. New test case for the issue #28493 has been created because the problem is not reproduced on MASTER.
3. Test case (lowalgos/intss/bug24472) for the issue #29501 has been modified in order to check loops of the resulting intersection curves.
