Token and word output modes

[epage]

These would exist for helping to debug configurations

[epage]

Questions

• What should the UX be?
  • Token per line or all have tokens be space separated with newlines matching the original file?
  • Is this another --format or does instead --format impact how this looks?
• What should the implementation be? Do we tie this into the same processing and add more Message variants? Or is this a separate code path?