0030645: Modeling Algorithms - B-spline segmentation produces wrong parametrization

0030645: Modeling Algorithms - B-spline segmentation produces wrong parametrization

Method Segment() of B-spline curve and surface has been extended by parameter theTolerance (theUTolerance and theVTolerance for surface), which defines the proximity between knots of a NURBS and boundaries of cutting segment. The default value of the tolerance is Precision::PConfusion().
Test cases have been added to check segmenting of B-spline surface and curves both 2D and 3D.