message: Added separate object for classifications
diff: TfLiteCategory cCategory = cClassifications.categories[j];
  [categories addObject:[TFLCategory categoryWithCCategory:&cCategory]];
  }
  - [classificationHeads addObject:[[TFLClassifications alloc] initWithHeadIndex:i
  - categories:categories]];
  + TFLClassifications *classifications = [TFLClassifications alloc] initWithHeadIndex:i
  + categories:categories];
  +
  + [classificationHeads addObject:classifications];
  }
  return [[TFLClassificationResult alloc] initWithClassifications:classificationHeads];
  