New error code needed on client registration

[Former user]

None of the present error codes are applicable to errors like these two:

• No sector_identifier_url where there MUST be one
• A redirect_uri that doesn't appear in the JSON file pointed to by the sector_identifier_url

I proposed a new error code called 'inconsistent_client_registration'

[Michael Jones]

We will add an invalid_redirect_uri error for the second case. We think that invalid_configuration_parameter covers the first case.

[Nat Sakimura]

Shall we put this in the "invalid" category?

[Edmund Jay]

fixes #649 - New error code needed on client registration

→ bd064e083e34