ping: import code from ndn-tlv-ping repository

This is an exact copy of code from
ndn-tlv-ping:commit:d3675f528af468d59b2c505057acd21b56210c5c

refs #2525

Change-Id: I4cd93087cf28737fa109183e83aa3bcf60c0f6ff
diff --git a/tools/ping/wscript b/tools/ping/wscript
new file mode 100644
index 0000000..406537b
--- /dev/null
+++ b/tools/ping/wscript
@@ -0,0 +1,17 @@
+# -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-
+top = '../..'
+
+def build(bld):
+    bld.program(
+        features='cxx',
+        target='../../bin/ndnping',
+        source='ndn-ping.cpp',
+        use='core-objects',
+        )
+
+    bld.program(
+        features='cxx',
+        target='../../bin/ndnpingserver',
+        source='ndn-ping-server.cpp',
+        use='core-objects',
+        )