hoCort is now a ggseg_atlas object (from ggseg.formats) containing
2D data. This is a 2D-only atlas (no 3D mesh data available).
Use ggplot() + ggseg::geom_brain(atlas = hoCort) for 2D plots.
ggseg.formats is now a hard dependency (in Depends).
Package URLs updated from LCBC-UiO to ggseg GitHub organisation.
NEWS.md file to track changes to the package.