Is your feature request related to a problem? Please describe.
Contributions Catalog (A web application for documenting/accepting/cataloging Rokwire Contributions like Talents and Capabilities) currently uses GitHub for authentication (https://docs.github.com/en/developers/apps/building-oauth-apps/authorizing-oauth-apps#web-application-flow). This is because we think the most of authenticated the users of this application will be developers and hence should likely have a GitHub account. We are trying to leverage Content Building Block to store icon images that'll be submitted through the Contributions Catalog, but that needs a Rokwire access token issued by the Core BB.

Describe the solution you'd like
Please add OAuth 2.0 access token support to Core BB so that we can get a Rokwire access token in exchange for a GitHub access token and use that for communicating with the Content BB. I'm creating this feature request to start a conversation. We can also discuss any alternatives or iterate on the feature request.

Additional context
Add any other context or screenshots about the feature request here.