recommendation: change cellsize to cellarea

[alex-s-gardner]

cellsize is a bit ambiguous, cell area is not

Also, it could be helpful if cellsize() accepted a kwarg of "unit" if the user wanted a unit other than km^2 returned.

Given that projected units are always in meters, and meter is si units, I wonder if returning meters^2 by default would be a better choice in the long run.

[rafaqz]

I'll add unitful support soon for CF as well, so that can happen at the same time.

For cellarea PR and deprecated cellsize?

@tiemvanderdeure ?

[tiemvanderdeure]

I have no strong feelings about this one. The name cellsize comes from the function in terra in R with the same name: https://rdrr.io/cran/terra/man/cellSize.html.

Changing to meter units would be breaking but it would make sense to do it at the same time as a name change.

[rafaqz]

I think we will have a units keyword for opt-in units wherever they're used, false by default.