PipeWire headers were recently cleaned up to reduce the number of
included headers. This leads to a number of functions and types not
being included when needed in wireplumber.

In current pw master the behavior has been changed to not activate
the "On" profile on alsa devices by default, because of the DeviceReserve
D-Bus API implementation in media-session.

This is a hack here to get the previous behavior. In the future
we should have a way to configure profiles, as well as to pick
a sensible default by autodetection.

This class wraps a SPA monitor and creates all
the devices and nodes as they are being discovered