After all, we can just load multiple lua config files/directories
from a single .conf file and so have both styles available for the
user to choose at runtime
This configuration allows splitting wireplumber into multiple instances.
The "main" instance takes care of loading and managing devices
The "policy" instance does all the linking and implements endpoints
The "bluetooth" instance runs the bluetooth devices & nodes
Test with (in separate terminals):
./wp-uninstalled.sh -c config-split -- wireplumber -c main.conf
./wp-uninstalled.sh -c config-split -- wireplumber -c policy.conf
./wp-uninstalled.sh -c config-split -- wireplumber -c bluetooth.conf
