* Implemented userinfo #8534 * Make lint happy * Add userinfo endpoint to openid-configuration * Give an error when uid equals 0 * Implemented BearerTokenErrorCode handling * instead of ctx.error use ctx.json so that clients parse error and error_description correctly * Removed unneeded if statement * Use switch instead of subsequent if statements Have a default for unknown errorcodes. Co-authored-by: Nils Hillmann <[email protected]> Co-authored-by: nlhsoftware <[email protected]>