C22 negative/failure fixtures

MISMATCH: page-2-landscape.svg is placed before page-1-portrait.svg. Do not mark the submission verified.
MISMATCH: a page with the wrong orientation or margin remains a mismatch until the output is checked again.
UNKNOWN: an unreadable or uninspected output is unknown; it is not a verified submission.
ACTION: if a mismatch remains, do not deliver the output.
BOUNDARY: this file describes synthetic fixtures only. It contains no visitor file and no destination rule.