Treat s24 format as s32 and let sndfile convert for us. This is
needed because using the raw read bypasses decoding in some cases.
This makes 24 bits flac work.
Use the pw- prefix for all pipewire tools. This makes the
commands shorter but also avoids conflicts with password
and patchwork tools (pwcli is taken, pwconv is maybe we someday
can make).
pipewire-monitor -> pw-mon
pipewire-cli -> pw-cli
pipewire-dot -> pw-dot
pwcat -> pw-cat