tools: implement 'nfdc cs info' command

refs #4219

Change-Id: I4252878943c3f6c88f306f83f5023fffc82326b0
diff --git a/docs/manpages/nfdc.rst b/docs/manpages/nfdc.rst
index 406bf35..79140d6 100644
--- a/docs/manpages/nfdc.rst
+++ b/docs/manpages/nfdc.rst
@@ -45,4 +45,4 @@
 
 SEE ALSO
 --------
-nfdc-status(1), nfdc-face(1), nfdc-route(1), nfdc-strategy(1)
+nfdc-status(1), nfdc-face(1), nfdc-route(1), nfdc-cs(1), nfdc-strategy(1)