message: Rename savegame resource string constants
diff: @@ -53,15 +53,10 @@ namespace constants
  // =====================================
  // = RESOURCES
  // =====================================
  - const std::string SAVE_GAME_COMMON_METAL_ORE = "common_metal_ore";
  - const std::string SAVE_GAME_COMMON_MINERAL_ORE = "common_mineral_ore";
  - const std::string SAVE_GAME_RARE_METAL_ORE = "rare_metal_ore";
  - const std::string SAVE_GAME_RARE_MINERAL_ORE = "rare_mineral_ore";
  -
  - const std::string SAVE_GAME_COMMON_METAL = "common_metal";
  - const std::string SAVE_GAME_COMMON_MINERAL = "common_mineral";
  - const std::string SAVE_GAME_RARE_METAL = "rare_metal";
  - const std::string SAVE_GAME_RARE_MINERAL = "rare_mineral";
  + const std::string SAVE_GAME_RESOURCE_0 = "resource_0";
  + const std::string SAVE_GAME_RESOURCE_1 = "resource_1";
  + const std::string SAVE_GAME_RESOURCE_2 = "resource_2";
  + const std::string SAVE_GAME_RESOURCE_3 = "resource_3";
  const std::string SAVE_GAME_ENERGY = "energy";
  const std::string SAVE_GAME_FOOD = "food";
  