Add support for network and cooling fan

Add support for a network display, and for a coolin fan.  Note that at
the moment we support one and only one coolin fan, along with the CPU
fan.

monitor/sysmon.ini

@@ -0,0 +1,33 @@
+#
+# For drives, you can ignore a device from collecting the temperature,
+# or the performance data.  A good device to ignore for temperature 
+# collection is the mmcblk0 device, as no temp available.  Also
+# in a system using RAID, the temperature is not available.
+#
+[drive]
+    temp_ignore = mmcblk
+    perf_ignore = mmcblk
+
+#
+# When monitorin the network, you can ignore speciic devices.  On
+# the Argon40 OneUP there is an eth0 thats available but not connected
+# to anything, so that an lo are good to ignore
+#
+[network]
+    device_ignore = "lo,eth0"
+
+#
+# if your system has a separate case fan, you can montor the speed if 
+# it has a tachometer attached to a GPIO pin
+#
+#[cooling]
+#    casefan = 18
+
+#
+# In the rare case there is an additional smartctl command option needed
+# for a speciic drive, you can add that here.
+#
+#[smartctl]
+#    drive = extra_smartctl_command
+
+