Add support for multiple music paths and downloadable demo tracks (#17)

[github-actions[bot]]

• Support default user music path Support demo music from URL (zip)

• Add ovos-skill-installer dependency

• Update skill.json

• Implement id3parse for fallback meta parsing Add unit test for id3parse fallback Refactor metadata parsing for modularity and easier testing

• Update skill.json

• Add some error handling for music info from paths

---

Co-authored-by: NeonDaniel NeonDaniel@users.noreply.github.com