Support direct CSV urls

[rufuspollock]

Should be able to paste a CSV link directly and then have Recline viewer kick in.

This is possible to do but somewhat complex as we have to intercept URL and analyse it as CSV which when this extension was first built required an experimental chrome developer API.

It also has the usability downside that users have no way to directly download CSVs anymore (however that could be addressed in some way - e.g. right-click to download direct or something ...)

[sejohnso1]

Would you have example HTML that implements this processing of the URL as a CSV?

Thanks in advance for any help you might have.