When acting as a consumer and using OAuth to authenticate to the service provider,
this servlet allows to register another Atlassian application that has the OAuth plugin installed as a service provider.
When acting as a consumer and using OAuth to make authenticated request to a service provider this servlet is used
to configure outbound OAuth configuration for third-party, non-applinks service provider that don't run our plugin (so we can't just
point to their inbound config servlet).
