virtual/notification-daemon: add gui-apps/swaync

We have swaync in GURU, ::gentoo doesn't
So update this virtual as swaync provides a working notification-daemon

Signed-off-by: Joe Kappus <joe@wt.gd>

virtual/notification-daemon/Manifest

@@ -0,0 +1 @@
+EBUILD notification-daemon-0.ebuild 779 BLAKE2B 4585d75911ea829167f2f41894b0aad699eb7b254804ecb2f83fd383f882ede51e4043cbc0921cbf81fc469060e323da30d7616194fc947e789b3ce73b272f46 SHA512 074f71dc944825238cec1629e16ef56f536d3d205c099e22bd85eb6fba7cb37547fc8532a52a70f5bf3c86070bc1bd63f8a745d600b8c69b6868e1c796742cd5

virtual/notification-daemon/notification-daemon-0.ebuild

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+# Copyright 1999-2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+DESCRIPTION="Virtual for notification daemon dbus service"
+SLOT="0"
+KEYWORDS="~alpha amd64 arm arm64 ~ia64 ~mips ppc ppc64 ~riscv sparc x86 ~amd64-linux ~x86-linux ~ppc-macos ~x86-solaris"
+IUSE="gnome kde"
+
+RDEPEND="
+	gnome? ( || ( x11-misc/notification-daemon
+		gnome-base/gnome-shell ) )
+	kde? ( kde-plasma/plasma-workspace )
+	!gnome? ( !kde? ( || (
+		x11-misc/notification-daemon
+		gnome-extra/cinnamon
+		gui-apps/mako
+		gui-apps/swaync
+		xfce-extra/xfce4-notifyd
+		x11-misc/notify-osd
+		x11-misc/dunst
+		>=x11-wm/awesome-3.4.4[dbus]
+		x11-wm/enlightenment
+		x11-misc/mate-notification-daemon
+		lxqt-base/lxqt-notificationd
+		net-misc/eventd[notification] ) ) )"