Switch over to Universal-Core. (#18)

* Don't build here.

* WIP: Switch to Universal-Core.

* Update Submodule repo & azure-pipelines.

include/utils/formatting.hpp

@@ -24,6 +24,11 @@
 *         reasonable ways as different from the original version.
 */
 
-#pragma once
+#ifndef FORMATTING_HPP
+#define FORMATTING_HPP
 
-std::string formatBytes(int bytes);
+#include <string>
+
+std::string formatBytes(int bytes);
+
+#endif