Added JSON testing application

test/json.cpp

@@ -0,0 +1,14 @@
+#include "../lib/json.cpp"
+#include <iostream>
+#include <string>
+#include <sstream>
+
+int main(int argc, char ** argv){
+  std::string line;
+  std::stringstream jData;
+  while (getline(std::cin, line)){jData << line;}
+  JSON::Value J = JSON::fromString(jData.str().data(), jData.str().size());
+  std::cout << J.toPrettyString() << std::endl;
+  return 0;
+}
+