0020958: EDF 1529 SMESH : If some faces have been meshed with small

0020958: EDF 1529 SMESH : If some faces have been meshed with small
quadrangles Netgen 3D creates pyramids with volume zero and fails

struct SMESH_ElementSearcher
{
+  /*!
+   * \brief Return elements possibly intersecting the line
+   */
+  virtual void GetElementsNearLine( const gp_Ax1&                           line,
+                                    SMDSAbs_ElementType                     type,
+                                    std::vector< const SMDS_MeshElement* >& foundElems)=0;