Global Privacy Control, issue 33 (support resource)

Hey, I wanted to give folks a heads up that we discussed whether to
maintain the optional well-known resource for GPC on the Privacy-CG call
yesterday (issue 33 <https://github.com/privacycg/gpc-spec/issues/33>).
Based on that discussion (notes here
<https://docs.google.com/document/d/1DZEhS1UHJ1PKxt5ZwKmn5LZ4bo10UFyNXeLp2dUuzRM/edit#>),
we decided to retain the resource and close the issue next week, but wanted
to flag for the broader community to see if others who were not on the call
had a strong objection to this approach.

Separately, Pete Snyder opened a pull request
<https://github.com/privacycg/gpc-spec/pull/48> to propose revising the
well-known resource to provide dynamic information as to whether individual
users' GPC requests are honored. Assuming we do in fact retain the
resource, we will consider this and other proposals to convey more
fine-grained information about GPC compliance going forward. Feedback on
the PR would be appreciated.

Finally, there aren't a lot of open issues on the spec right now, so if
folks have other points they want to raise I encourage you to open a new
issue or PR.

-- 
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