Change the parameter m_followig_ivorn from std::string to vector of std::string in order to take into acount multiple successors in the BothDir traking method. Accessors modified to fit this new definition. Major change for writing the multiple ivorns with now one xml node for each ivorn stored (predecessor or successor)
Change the parameter m_followig_ivorn from std::string to vector of std::string in order to take into acount multiple successors in the BothDir traking method. Accessors modified to fit this new definition. Major change for writing the multiple ivorns with now one xml node for each ivorn stored (predecessor or successor)