feat: device authorization RFC 8628 (#5646)

* device auth: implement the write events

* add grant type device code

* fix(init): check if default value implements stringer

---------

Co-authored-by: adlerhurst <[email protected]>

internal/eventstore/handler/crdb/init.go

@@ -377,6 +377,8 @@ func defaultValue(value interface{}) string {
 	switch v := value.(type) {
 	case string:
 		return "'" + v + "'"
+	case fmt.Stringer:
+		return fmt.Sprintf("%#v", v)
 	default:
 		return fmt.Sprintf("%v", v)
 	}