Add Folder check and Folder creation

Util/Util.h

@@ -0,0 +1,18 @@
+#ifndef UTIL_UTIL_H
+#define UTIL_UTIL_H
+
+#include <string>
+
+
+namespace CameraRecorder {
+namespace Util {
+
+std::string GetDateTimeString(bool omitSeparator = false);
+
+bool FolderExists(const std::string& path);
+void CreateFolder(const std::string& path);
+
+} // namespace Util
+} // namespace CameraRecorder
+
+#endif // UTIL_UTIL_H