chore: update image namespacing

src/ImageConverter/ImageConverterArgs.h

@@ -1,24 +1,13 @@
 #pragma once
 
+#include "Game/IGame.h"
 #include "Utils/Arguments/ArgumentParser.h"
 
 #include <cstdint>
+#include <optional>
 #include <string>
 #include <vector>
 
-namespace image_converter
-{
-    enum class Game : std::uint8_t
-    {
-        UNKNOWN,
-        IW3,
-        IW4,
-        IW5,
-        T5,
-        T6
-    };
-} // namespace image_converter
-
 class ImageConverterArgs
 {
 public:
@@ -26,7 +15,7 @@ public:
     bool ParseArgs(int argc, const char** argv, bool& shouldContinue);
 
     std::vector<std::string> m_files_to_convert;
-    image_converter::Game m_game_to_convert_to;
+    std::optional<GameId> m_game_to_convert_to;
 
 private:
     /**