Adding ONOS Segment Routing CLI files to new repo
diff --git a/cli/documentation/en_US/aaa/aaa-authentication b/cli/documentation/en_US/aaa/aaa-authentication
new file mode 100755
index 0000000..6df1b62
--- /dev/null
+++ b/cli/documentation/en_US/aaa/aaa-authentication
@@ -0,0 +1,3 @@
+Configure authentication (user password validation).  Users are
+authenticated for a specific task and via a specific channel, using one
+or more authentication sources.