Make IntersectWithLine use tolerance in vtkProbeLineFilter
this was detected when trying to intersect 2D cells : vtkLine::IntersectWithLine
does not return the same thing with (p1;p2) and (p2;p1)
This MR also fixes vtkCell::IntersectWithLine implementation for vtkQuad and vtkPixel
Edited by Timothee Chabat