[Ingestion Form] Batch ingestion of compressed files

[altroisi]

Subject of the issue

In the ingestion form, add a properties to specify that CSV/JSON files for a feed will be uploaded compressed (ZIP) on the SFTP channel. A zip archive will not contain multiple csv/json files.

Expected behaviour

The new feed will read zip files and will decompress them before loading on hdfs

Actual behaviour

Now it's not possible to provide this information, although a feed can be manually changed (via the administration console) to support zip files