WEB: Governance community members
xref #47694

Draft of the different groups of the pandas community worth mentioning in the governance. I personally find this format (a concise description with responsibilities, and a section for how membership works) the best. I think it keeps simple, while having all the information so decision making is clear.

The exact content is an initial version what makes sense to me, but feedback more than welcome. I think having an initial proposal make things easier to discuss, but surely things can be improved.

Topics like how a technical decision in the project is made are not in the scope of this PR, and will be addressed separately. What I try to do here is to formalize which are the different groups that are relevant in the pandas community, and when and how people and institutions become part of them, or when stop being part.
Thanks for the feedback. I addressed all comments. I think it's too ambitious to try to change the governance at this point. I think the amount of energy and time required to get a document with 80% of core dev approvals is just too much. Closing, maybe things look better in the future.