PackageManager::LoadMap(): Add the file extension if it is missing.

SurrealEngine/Package/PackageManager.cpp

@@ -80,6 +80,9 @@ std::unique_ptr<Package> PackageManager::LoadMap(const std::string& path)
 	// Only one of the above is most likely true. Lets begin with assuming its relative to the Maps folder.
 	std::string name = FilePath::remove_extension(FilePath::last_component(path));
 	std::string absolute_path = FilePath::relative_to_absolute_from_system(FilePath::combine(launchInfo.gameRootFolder, "Maps"), path);
+	// Add the file extension if it is missing
+	if (!FilePath::has_extension(absolute_path, GetMapExtension().c_str()))
+		absolute_path += "." + GetMapExtension();
 	return std::make_unique<Package>(this, name, absolute_path);
 }