Save filtered view of dataframe

[johncmerfeld]

When we execute a query or column filter on a dataframe, under the hood it's actually a separate object. It might be convenient to be able to save this out to a file. It doesn't really scale to a data processing workflow, but would be a nice feature for datascroller's place in the pipeline (i.e. creating a small sample dataset for testing or sharing a snapshot of query results with colleagues).