znc: Add support for many configurable listeners for znc

Function add_listener called from /etc/init.d/znc, but not implemented

Signed-off-by: Pavel Demkovich <finn@finnix.servebeer.com>

net/znc/files/znc.conf

@@ -1,7 +1,5 @@
 config znc
-	# where to listen for connections
-	list listener	'192.168.1.1 1234'
-	# If using SSL sockets, use the following certifcate:
+	# If using SSL sockets, use the following certificate:
 	# option znc_ssl_cert '/etc/znc.cert'
 
 	# load global modules (You need to install them first):
@@ -10,6 +8,16 @@ config znc
 	# remove this to enable the service
 	option disabled 1
 
+config listener 'sampleListener'
+	option allowirc 'true'
+	option allowweb 'false'
+	option host '192.168.1.1'
+	option port '1234'
+	option ipv4 'true'
+	option ipv6 'false'
+	# you must set option_ssl_cert in znc section before change
+	option ssl 'false'
+
 config user 'sampleUser'
 	# Use either a plain text password or use the full sha256#... line.
 	# You can generate one with 'znc -s'.