Integration of the gluon-config-site-select package

LUA does not like '-', so ffmuc-umland was renamed to ffmuc_umland
Several testing has still to be done (especially upgrade to/from a firmware with site-select)

site.mk

@@ -9,6 +9,7 @@ GLUON_SITE_PACKAGES := \
 	gluon-config-mode-mesh-vpn \
 	gluon-config-mode-geo-location \
 	gluon-config-mode-contact-info \
+  gluon-config-mode-site-select \
 	gluon-ebtables-filter-multicast \
 	gluon-ebtables-filter-ra-dhcp \
 	gluon-luci-admin \
@@ -23,9 +24,9 @@ GLUON_SITE_PACKAGES := \
 	gluon-status-page \
 	iwinfo \
 	iptables \
-	haveged \
-	gluon-ebtables-filter-arp-ffmuc \
-	gluon-ebtables-filter-multicast-ffmuc
+	haveged #\
+#	gluon-ebtables-filter-arp-ffmuc \
+#	gluon-ebtables-filter-multicast-ffmuc
 
 
 DEFAULT_GLUON_RELEASE := snapshot~$(shell date '+%Y%m%d')