Update campaign settings

Deprecated: use discovery.campaign-settings.update.v2 (discovery_campaign_settings_update_v2), which takes no audience, targetedGroupIds or removeCustomersOutsideAudience: a campaign's audiences are fixed at launch. This version still changes them. Save a Discovery campaign's settings in place, all or nothing: its name, assistants, customers (who and how many), audiences and a store campaign's stores. Results continue on the same campaign and take in the change over its next 30 days; changes reach the next run, and a run under way finishes on what it reserved. Nothing is charged at Save: delivered conversations accrue against the plan. Pass expectedSettingsRevision from discovery.campaign-settings.get; a Save whose settings moved since is refused (STALE_WRITE). Pass reviewedEstimate from discovery.campaign-settings-quotes.get to also refuse one whose estimate moved, or null to save at the current estimate. The website never changes. A person confirms it.