into_tokenizer don't work with stop_words

[ManyTheFish]

The Tokenizer build with TokenizerBuilder::into_tokenizer never take into account the stop_words,

let mut tokenizer_builder = TokenizerBuilder::new();
tokenizer_builder.stop_words(stop_words);

// this creates a tokenizer without stop_words
let tokenizer = tokenizer_builder.into_tokenizer();