message: Added head name to TFLClassificationResult creation
diff: TfLiteCategory cCategory = cClassifications.categories[j];
  [categories addObject:[TFLCategory categoryWithCCategory:&cCategory]];
  }
  - TFLClassifications *classifications = [[TFLClassifications alloc] initWithHeadIndex:i
  +
  + NSString *headName = nil;
  +
  + if (cClassifications.head_name) {
  + headName = [NSString stringWithCString:cClassifications.head_name encoding:NSUTF8StringEncoding];
  + }
  +
  + TFLClassifications *classifications = [[TFLClassifications alloc] initWithHeadIndex:cClassifications.head_index
  + headName:headName
  categories:categories];
  [classificationHeads addObject:classifications];
  