Force zip function via API

[#1]

We've started using the API service instead of Data Warehouse to get a series of regular extracts that exceed the uniques limit.

It seems to do everything that we need, apart from allowing us to request a zipped file. The files appear to come through either zipped if they are over 10mb, or unzipped if <10mb.

It would be great if there was a command to force a zipped file via the API.

Best,

Tom