Added benchmark

benchmarks/Components_test.go

@@ -30,6 +30,11 @@ func BenchmarkAnimeList(b *testing.B) {
 	user, _ := arn.GetUser("4J6qpK1ve")
 	animeList := user.AnimeList()
 
+	// Prefetch
+	for _, item := range animeList.Items {
+		item.Anime()
+	}
+
 	b.ReportAllocs()
 	b.ResetTimer()