Add a HDFS files translator from version 0.1 to version 0.3

This PR implements the issue https://github.com/telefonicaid/fiware-connectors/issues/65 and fix the original translator (0.1->0.2).
"" may work. However, if you confirm that, I would add it as a note in the usage message, given that it is a non-inuitve (except for bash experts maybe ;) CLI usage.