template<class T>
T * Link<T>::InsertBefor(T * TToInsert)
{
	if (prev == nullptr)
	{
		prev = TToInsert;
	}
	else
	{
		Link<T> *temp = prev;
		prev = TToInsert;
		prev->prev = temp;
	}
	cout << "successfully inserted" << endl;
	return TToInsert;
}