shared-state look for neighbours also on br-lan

Because br-lan may contain unreal neighbours interfaces such as bat0
  accept only the ones which answhere in less then 2ms

packages/shared-state/files/usr/bin/shared-state-get_candidates_neigh

@@ -30,6 +30,10 @@ for iface in $(ls /sys/class/net/) ; do
 		awk '{if ($3 == "from") print substr($4, 1, length($4)-1)'"\"%$iface\""'}'
 done | sort -u -r)"
 
+candidateAddresses="$candidateAddresses
+$(ping6 -c 2 ff02::1%br-lan | \
+	awk '{if ($3 == "from" && substr($7,6)+0 < 2) print substr($4, 1, length($4)-1)"%br-lan" }' | sort -u)"
+
 for ownAddr in $(ip -6 address show | awk '{if ($1 == "inet6") print $2}' | awk -F/ '{print $1}') ; do
 	candidateAddresses="$(echo "$candidateAddresses" | grep -v "$ownAddr")"
 done