Allow multiple workflow versions to be aggregated together

[CKrawczyk]

This would require an input of both at min and max workflow version (major and minor) and changing the code here https://github.com/zooniverse/aggregation-for-caesar/blob/master/panoptes_aggregation/scripts/extract_panoptes_csv.py#L107-L110

[CKrawczyk]

Can use from packaging import version and version.parse to check between version bounds to make this easier. If this range covers more than one major version a warning should be given along the lines of

You are about to aggregate across multiple major workflow versions, are you sure the data structure is the same for all versions between {min_version} and {max_version}.

Not sure if this should be a blocking message or not. Also, an option should be added to silence this message.