Return the relationship for the given hop in the path.
Note that the result is undefined if the value is not of type NEO4J_PATH.
@param value The neo4j path.
@param hops The number of hops (distance).
@param forwardNULL, or a pointer to a boolean which will be set to
true if the relationship was traversed in its natural direction
and false if it was traversed backward.
@return A neo4j value enconding the Relationship.
Return the relationship for the given hop in the path.
Note that the result is undefined if the value is not of type NEO4J_PATH.
@param value The neo4j path. @param hops The number of hops (distance). @param forward NULL, or a pointer to a boolean which will be set to true if the relationship was traversed in its natural direction and false if it was traversed backward. @return A neo4j value enconding the Relationship.