message: Correct the submarine equipment type
diff: @@ -1065,7 +1065,7 @@ map<string, HoI4UnitMap> HoI4World::importUnitMap() const
  unitMap["cruiser"] = HoI4UnitMap("naval", "light_cruiser", "light_cruiser_1", 1);
  unitMap["battleship"] = HoI4UnitMap("naval", "heavy_cruiser", "heavy_cruiser_1", 1);
  unitMap["dreadnought"] = HoI4UnitMap("naval", "battleship", "battleship_1", 1);
  - unitMap["submarine"] = HoI4UnitMap("naval", "submarine", "submarine", 1);
  + unitMap["submarine"] = HoI4UnitMap("naval", "submarine", "submarine_1", 1);
  unitMap["carrier"] = HoI4UnitMap("naval", "carrier", "carrier", 1);
  unitMap["clipper_transport"] = HoI4UnitMap();
  unitMap["steam_transport"] = HoI4UnitMap("convoy", "convoy", "convoy_1", 1);
  