s6-networking: new package

This new package provides s6-networking, a suite of small networking
utilities for Unix systems.

Signed-off-by: Eric Le Bihan <eric.le.bihan.dev@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
diff --git a/package/Config.in b/package/Config.in
index bca190c..8e5880d 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -1641,6 +1641,7 @@
 	source "package/rtorrent/Config.in"
 	source "package/rtptools/Config.in"
 	source "package/s6-dns/Config.in"
+	source "package/s6-networking/Config.in"
 	source "package/samba4/Config.in"
 	source "package/sconeserver/Config.in"
 	source "package/ser2net/Config.in"