Adding ONOS Segment Routing CLI files to new repo
diff --git a/cli/documentation/en_US/controller/show-firewall b/cli/documentation/en_US/controller/show-firewall
new file mode 100755
index 0000000..a36b9c7
--- /dev/null
+++ b/cli/documentation/en_US/controller/show-firewall
@@ -0,0 +1 @@
+Show the firewall rules for the specified controller node.