GNOME40 in WIP

[Dan Cîrnaț <cirnatdan%NetBSD.org@localhost>]

Hello everyone,

Some core GNOME 40 packages have just been committed to pkgsrc-wip.
To try it, build the wip/gnome40 meta-package and follow the
instructions in MESSAGE.

List of packages:
wip/gnome40
wip/gnome-desktop40
wip/gnome-shell
wip/gdm
wip/mutter
wip/libgweather
wip/glib2
wip/gsettings-desktop-schemas
wip/epiphany

They are still very much a work-in-progress.
Known issue: sometimes the Shell freezes immediately after
starting an X session.

Best,
Dan