CSSWG + Open UI telecon

Thanks to the folks from the CSSWG that were able to meet and follow up
regarding the Open UI discussions we had during the CSSWG F2F. I wanted to
quickly provide the action items we discussed:

* Greg Whitworth to connect with fantasai and Tab regarding historical
styling discussions to unlock partial styling
* Greg Whitworth to reach out to the CSSWG chairs to discuss having a joint
topic at TPAC to discuss what can and should be defined for styling (this
may be impacted by the first bullet)
* Here is the explainer that explores the MVC defintion for web controls
that Open UI relies upon for bringing about form control styling and
extensibility:
https://github.com/MicrosoftEdge/MSEdgeExplainers/blob/main/ControlUICustomization/explainer.md

Here are the link to the minutes from this meeting:
https://www.w3.org/2020/08/18-css-minutes.html

Thank you all again for the discussion, while there are many things to
unpack I found the discussion productive and I hope you all did as well.

~Greg