code: function Tokenizer(dic) {
      this.token_info_dictionary = dic.token_info_dictionary;
      this.unknown_dictionary = dic.unknown_dictionary;
      this.viterbi_builder = new ViterbiBuilder(dic);
      this.viterbi_searcher = new ViterbiSearcher(dic.connection_costs);
      this.formatter = new IpadicFormatter();  // TODO Other dictionaries
  }
docs: Tokenizer
  @param {DynamicDictionaries} dic Dictionaries used by this tokenizer
  @constructor