hevc: add new conformance streams

Also remove superseded conformance streams. The conformance streams all
come from http://wftp3.itu.int/av-arch/jctvc-site/bitstream_exchange/draft_conformance/

Signed-off-by: Anton Khirnov <anton@khirnov.net>
hevc: rename some HEVC conformance streams

Some HEVC conformance streams zip on
http://wftp3.itu.int/av-arch/jctvc-site/bitstream_exchange/draft_conformance/
were updated without changing the actual stream. Rename them in FATE
accordingly to make it easier to track future stream updates.

Signed-off-by: Anton Khirnov <anton@khirnov.net>