Create the ndncert library

Change-Id: Ib5167500f16d4fb384ed6098c697355c1a50e4bb
diff --git a/ndncert.pc.in b/ndncert.pc.in
new file mode 100644
index 0000000..c0c5204
--- /dev/null
+++ b/ndncert.pc.in
@@ -0,0 +1,9 @@
+prefix=@PREFIX@
+libdir=@LIBDIR@
+includedir=@INCLUDEDIR@
+
+Name: ndncert
+Description: ndncert library
+Version: @VERSION@
+Libs: -L${libdir} -lndncert
+Cflags: -I${includedir}