Changes to Register an OAuth2 dynamic client

added the new optional request property client_uri

added the new optional request property logo_uri

added the new optional request property policy_uri

added the new optional request property tos_uri

added the optional property client_uri to the response with the 201 status

added the optional property logo_uri to the response with the 201 status

added the optional property policy_uri to the response with the 201 status

added the optional property tos_uri to the response with the 201 status

endpoint added