Export st_duplicated or propose it to sf package

[agila5]

I think st_duplicated is quite useful in several contexts (also outside of sfnetworks when testing the duplicated geometries) and I think we might consider exporting the function or propose it to sf developers.

[luukvdmeer]

Sounds good, I have been thinking before of exporting some utils functions of the package. Although I would say that st_duplicated and st_match are not really network specific. Maybe I can put them in a new package sfutils (since I don't think sf itself is the place for these kind of "handy" extras either, and not sure if @edzer is keen on adding even more functions). Then you don't have to load sfnetworks when you only want to use these functions

[agila5]

Although I would say that st_duplicated and st_match are not really network specific. Maybe I can put them in a new package sfutils...

👍 for me. Maybe @Robinlovelace already started a similar project, but I'm not sure.