guiutil::alert text wrapping + refactor

src/files/WorldConverter.h

@@ -2,19 +2,23 @@
 #define FILES_WORLD_CONVERTER_H_
 
 #include <queue>
+#include <memory>
 #include <filesystem>
 
+namespace fs = std::filesystem;
+
 class Content;
 class ContentLUT;
 class WorldFiles;
 
 class WorldConverter {
     WorldFiles* wfile;
-    const ContentLUT* const lut;
+    std::shared_ptr<ContentLUT> const lut;
     const Content* const content;
-    std::queue<std::filesystem::path> regions;
+    std::queue<fs::path> regions;
 public:
-    WorldConverter(std::filesystem::path folder, const Content* content, const ContentLUT* lut);
+    WorldConverter(fs::path folder, const Content* content, 
+                   std::shared_ptr<ContentLUT> lut);
     ~WorldConverter();
 
     bool hasNext() const;