micro_wake_word: Support "id" and "internal" for mww

[flubshi]

Describe the problem you have/What new integration you would like

Looking at the improvements of mww in home-assistant-voice-pe I noticed that you implemented support for id and internal for mww. Example:

micro_wake_word:
  id: mww
  models:
    - model: hey_mycroft
      id: hey_mycroft
    - model: https://github.com/kahrendt/microWakeWord/releases/download/stop/stop.json
      id: stop
      internal: true

Please describe your use case for this integration and alternatives you've tried:

Since I want to experiment with the stop word feature as implemented in home-assistant-voice-pe I would like to ask, if you could please implement it in the upstream mww.

Using the implementation in home-assistant-voice-pe as external component does not work due to the further dependencies.

Additional context