0029405: Modeling Algorithms - Check normal define status in HLRBRep_Data

0029405: Modeling Algorithms - Check normal define status in HLRBRep_Data

Fixed exception when trying to calculate line and edge normal in methods HLRBRep_Data::OrientOutLine and HLRBRep_Data::OrientOthEdge, added a check for the existence of the normal before subsequent calculations. A correct check for zero derivative, correction of floating point error and division by zero determinant directly in HLRBRep_EdgeFaceTool::CurvatureValue was set.