tools: merge nfd-status into nfdc

nfd-status functionality is accessible through `nfdc legacy-nfd-status` subcommand,
and nfd-status is replaced with a shell script calling this subcommand.

refs #3749

Change-Id: Iab03f3bc9ddb4333a0b6ca5fb9c67f54e9960ab4
diff --git a/tools/nfd-status.sh b/tools/nfd-status.sh
new file mode 100755
index 0000000..a63f5ca
--- /dev/null
+++ b/tools/nfd-status.sh
@@ -0,0 +1,2 @@
+#!@BASH@
+$(dirname "$0")/nfdc legacy-nfd-status "$@"