Package reorganization
- Several changes to the API
**Key notes**:
1. New accessor for color palettes: `vinplots.colors.<[ your key here ]>`
2. For stability, moved the `mscorefonts` installation step to a separate `vinplots.ut` accessor rather than this occurring on import. This means it has to be run separately, but also prevents hangups during routine import.
3. Added `vinplots.quick_plot()` function.
4. This is old but was never well documented; added `vinplots.save`
**Still to-do**:
- Add some API documentation a la [readthedocs](https://vinplots.readthedocs.io/en/latest/index.html).
**Full Changelog**: https://github.com/mvinyard/vinplots/compare/v0.0.43...v0.0.72