Execution example::

  tokenize TokenDelimit "アァイィウゥエェオォ" --token_filters  'TokenFilterNFKC100("unify_to_romaji", true)'
  # [
  #   [
  #     0, 
  #     1337566253.89858, 
  #     0.000355720520019531
  #   ], 
  #   [
  #     {
  #       "force_prefix_search": false, 
  #       "position": 0, 
  #       "force_prefix": false, 
  #       "value": "axaixiuxuexeoxo"
  #     }
  #   ]
  # ]
