* Use a more complete API to introspect SPA types
* Avoid the need for the Tables enumeration; the tables
  are now registered with a string
* Avoid the need for initialization, work directly on spa_types
  and other static data
* Allow working with Object pods that are not Params;
  the PARAMS table was previously hardcoded in the pod implementation
* Add a different dynamic type registration system, closer to
  how spa type works. The only regression is that we can no longer
  register additional custom object fields (custom SPA_PROP_* for example),
  but this feature can be re-added later

+ use a more correct naming scheme to match the one from Spa
+ remove the default video source, since we now use a different
 session for video

And also provide a way to disable this integration at runtime to
get pipewire's log back, with WIREPLUMBER_NO_PW_LOG=1