Check hasNext before close ArangoCursor #223
Description
Prevent ArangoDbException "Response: 404, Error: 1600 - cursor not found" if ArangoCursor is already deleted/closed at server.
The try-with-resources Statement throws an ArangoDbException if ArangoCursor has an id and hasNext returns false.
try (ArangoCursor<BaseDocument> cursor = ...) { // some code }