* use Q_DECLARE_FLAGS NotificationFlag/Notification for sounds, not the weird version from very early swift days
* splt into h/cpp files
* added new sounds
The voice room callsign will be set from the current context values right
before a new connection is made. Therefore all updates in between are not
necessary and can be removed.
ref T354
* Info for which machine audio setup is displayed
* Obtain audio "location"
* Remark: Audio can run on core and in GUI which is different from other contexts
In same step cleaned up contexts a bit
* added function for model set strings
* renamed functions to getModelSet... instead of installed models (the set is smaller and is what we want to use with DBus)
* signal when debug/log flags changed
* removed some \copydoc
* allow to enable/disable rev.lookup/matching messages
* removed reload model function (dangling)
