Add -c option to pipewire to select config file. Use this to select
the uninstalled conf file.
Rename conf properties, prefix with context.
Simplify the main daemon now that everything can go in config.
Simplify pipewire-pulse now that we can put everything in config, it's
now virtually the same as pipewire but with a differenct config file.
Parse server addresses as array of strings.
Make methods to load_config and load/save state. For now the config
and state directories are the same but it might not be. Implement
the search path for all config/state files as:
$XDG_CONFIG_HOME/[$prefix]/$name
$HOME/.config/[$prefix]/$name
$PIPEWIRE_CONFIG_DIR/pipewire/[$prefix]/$name
/etc/pipewire/[$prefix]/$name
Make some config files for jack and RT clients. Make pw-cat use the
client-rt config.
Use core state and config management in media-session.
Move all session manager state and config files to the build dir and
set the PIPEWIRE_CONFIG_DIR to this build dir.
