Add RS to the metadata push to oidcng as RS and not RP

[phavekes]

This issue is imported from pivotal - Originaly created at Mar 26, 2021 by Okke Harsta

For backward. compatibility all the RS's are transformed to RP's with isResourceServer=true and all the scopes including name, title, description. When OIDC-NG is capable of receiving both RP's and RS's and distinguishing between them then this should be removed.

[phavekes]

As discussed: If we are going to refactor how scopes are handled, we can pick up this story again. For now it's working (Bart Geesink - Aug 10, 2022)