FR: selectFirst() and expectFirst() on org.jsoup.select.Elements #2256

It'd be useful to be able to use selectFirst() and expectFirst() on org.jsoup.select.Elements instances to mirror the methods in org.jsoup.nodes.Element.
As far as I understand this is because org.jsoup.select.Selector provides both select(String, Element) and select(String, Iterable<Element>) but only selectFirst(String, Element).

I could take a look at it myself, but people knowledgeable about jsoup internals would probably take much less time.

Bonus points if it's actually faster than select(...).first() 😉

Thanks for your work