listDatabases and listCollections introduced nameOnly options in 3.6 and 4.0, respectively. We should add support for these in our existing helpers. If the options are not supported, we can either report an error or silently ignore them.

Original description: It seems that the ListDatabases class does not have the nameOnly option as described in https://docs.mongodb.com/manual/reference/command/listDatabases/ implemented.