adding example runit-style service directory

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/examples/var_service/fw/conf/11.22.33.44.ipconf-- b/examples/var_service/fw/conf/11.22.33.44.ipconf--
new file mode 100644
index 0000000..9b44e90
--- /dev/null
+++ b/examples/var_service/fw/conf/11.22.33.44.ipconf--
@@ -0,0 +1,10 @@
+#!/bin/sh
+# If we have simple static address...
+#
+let cfg=cfg+1
+if[$cfg]=if
+ip[$cfg]=11.22.33.44
+ipmask[$cfg]=11.22.33.44/24
+gw[$cfg]=11.22.33.1
+net[$cfg]=0/0
+dns[$cfg]='11.22.33.2 11.22.33.3'