Add example configuration files for unicast operation.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>

configs/UNICAST-MASTER.cfg

@@ -0,0 +1,9 @@
+#
+# Unicast master example configuration containing those attributes
+# which differ from the defaults.  See the file, default.cfg, for the
+# complete list of available options.
+#
+[global]
+hybrid_e2e			1
+inhibit_multicast_service	1
+unicast_listen			1

configs/UNICAST-SLAVE.cfg

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+#
+# UNICAST slave example configuration with contrived master tables.
+# This example will not work out of the box!
+#
+[global]
+#
+# Request service for sixty seconds.
+#
+unicast_req_duration	60
+
+#
+# This table has four possible UDPv4 master clocks.
+#
+[unicast_master_table]
+table_id		1
+logQueryInterval	2
+UDPv4			192.168.1.11
+UDPv4			192.168.2.22
+UDPv4			192.168.3.33
+
+#
+# This table has just one Layer-2 master clock.
+#
+[unicast_master_table]
+table_id		2
+logQueryInterval	2
+L2			00:11:22:33:44:55
+
+#
+# This table would be for use with the P2P delay mechanism.
+#
+[unicast_master_table]
+table_id		3
+logQueryInterval	2
+peer_address		192.168.4.44
+UDPv4			192.168.4.44
+
+#
+# eth0 uses the master table with ID 1 over UDPv4.
+#
+[eth0]
+unicast_master_table	1
+
+#
+# eth1 uses the master table with ID 2 over Layer-2.
+#
+[eth1]
+network_transport	L2
+unicast_master_table	2