add 5V stack handler

mission/system/objects/Stack5VHandler.h

@@ -0,0 +1,24 @@
+#ifndef MISSION_SYSTEM_OBJECTS_STACK5VHANDLER_H_
+#define MISSION_SYSTEM_OBJECTS_STACK5VHANDLER_H_
+
+#include <fsfw/power/PowerSwitchIF.h>
+
+#include "mission/devices/devicedefinitions/GomspaceDefinitions.h"
+
+class Stack5VHandler {
+ public:
+  Stack5VHandler(PowerSwitchIF& switcher);
+
+  ReturnValue_t commandSwitchOn();
+  ReturnValue_t commandSwitchOff();
+
+  bool isSwitchOn();
+
+ private:
+  PowerSwitchIF& switcher;
+  bool radSensorIsOn = false;
+  bool plPcduIsOn = false;
+  pcdu::Switches stackSwitch = pcdu::Switches::P60_DOCK_5V_STACK;
+};
+
+#endif /* MISSION_SYSTEM_OBJECTS_STACK5VHANDLER_H_ */