PAL13460 (PAL EDF 301 force the mesh to go through a point)

PAL13460 (PAL EDF 301 force the mesh to go through a point)
   Provide usual access to data:
+  virtual int NbNodes() const;
+  const std::vector<int> & GetQuanities() const { return myQuantities; }
+  virtual const SMDS_MeshNode* GetNode(const int ind) const;
+  SMDS_ElemIteratorPtr uniqueNodesIterator() const;
+  SMDS_ElemIteratorPtr elementsIterator(SMDSAbs_ElementType type) const;