Interim version of watersurfaces_refpoints

This data source is an interim version of watersurfaces_refpoints and was derived from an interim version of watersurfaces_hab, which in turn is based on an unpublished interim version of habitatmap. It is used to update the outcome of a few scripted workflows and it is stored here for reproducibility reasons. It does not replace the regular releases that are based on the regular releases of watersurfaces_hab, hence on the officially published habitatmap. For more information about watersurfaces_refpoints, refer to its regular releases. The R-code for creating this interim version can be found in the GitHub repository 'n2khab-preprocessing'.