flash read command

mission/utility/Timestamp.h

@@ -2,6 +2,8 @@
 #define MISSION_UTILITY_TIMESTAMP_H_
 
 #include <string>
+#include <sstream>
+#include <iomanip>
 #include "fsfw/timemanager/Clock.h"
 #include "fsfw/returnvalues/HasReturnvaluesIF.h"
 
@@ -21,6 +23,7 @@ public:
     std::string str();
 
 private:
+    std::stringstream timestamp;
     Clock::TimeOfDay_t time;
 };