Turn CameraFile into a struct

src/gphoto2/camera/capture.cr

@@ -60,7 +60,7 @@ module GPhoto2
       private def _capture(type)
         context.check! \
           LibGPhoto2.gp_camera_capture(self, type, out path, context)
-        CameraFilePath.new pointerof(path)
+        CameraFilePath.new path
       end
 
       private def capture_preview

src/gphoto2/camera_file_path.cr

@@ -1,16 +1,15 @@
 module GPhoto2
   # Represents a path representing a file or folder.
-  class CameraFilePath
-    include GPhoto2::Struct(LibGPhoto2::CameraFilePath)
-
+  struct CameraFilePath
     # Returns the name part of the path.
-    def name : String
-      String.new wrapped.name.to_unsafe
-    end
+    getter name : String
 
     # Returns the folder part of the path.
-    def folder : String
-      String.new wrapped.folder.to_unsafe
+    getter folder : String
+
+    def initialize(path : LibGPhoto2::CameraFilePath)
+      @name = String.new(path.name.to_unsafe)
+      @folder = String.new(path.folder.to_unsafe)
     end
 
     def_equals name, folder