Upgrade jsoncpp to 1.9.4

Bug: 170642246
Change-Id: Id1fae5a1b6421117f923c616718ee4b3571231e0
diff --git a/example/streamWrite/streamWrite.cpp b/example/streamWrite/streamWrite.cpp
new file mode 100644
index 0000000..6f7f797
--- /dev/null
+++ b/example/streamWrite/streamWrite.cpp
@@ -0,0 +1,22 @@
+#include "json/json.h"
+#include <iostream>
+/** \brief Write the Value object to a stream.
+ * Example Usage:
+ * $g++ streamWrite.cpp -ljsoncpp -std=c++11 -o streamWrite
+ * $./streamWrite
+ * {
+ *     "Age" : 20,
+ *     "Name" : "robin"
+ * }
+ */
+int main() {
+  Json::Value root;
+  Json::StreamWriterBuilder builder;
+  const std::unique_ptr<Json::StreamWriter> writer(builder.newStreamWriter());
+
+  root["Name"] = "robin";
+  root["Age"] = 20;
+  writer->write(root, &std::cout);
+
+  return EXIT_SUCCESS;
+}