debug log if vehicle gets destroyed

src/VehicleData.cpp

@@ -1,6 +1,11 @@
 #include "VehicleData.h"
+#include "Common.h"
 
 TVehicleData::TVehicleData(int ID, const std::string& Data)
     : _ID(ID)
     , _Data(Data) {
 }
+
+TVehicleData::~TVehicleData() {
+    debug("vehicle " + std::to_string(_ID) + " destroyed");
+}