* add a couple tests
* fix#4: put the whole video frame (including multiple NALs) into
a single Bytes. This is simpler to use and speeds up the
depacketize/h264_aac_writevideo benchmark. It's also a behavior
change; now I include non-VUI data such as SPS/PPS/SEI into the
data. I think this is a better default but it might be worth
making customizable.
* add variant which writes video to /dev/null
* (try?) to compile with debug symbols. (it seems to work but
cargo flamegraph still seems to complain?)
* faster parsing of inline data. I'd like to figure out why this is
slow with rtsp_types and fix it, but anyway in this benchmark I want
to just focus on the depacketization