[osx] - readd the "default" device. This will be visible in the list as "default" and will always open the osx default device. This allows automagic switching when default output changes (e.x. powering off the amp or plugging in headphones)
[osx] - revert part of 5cdc1bfb8bbf52438b9ad69bd09ea3dc3ef8669a - it was plain bs from me. Fixes no audio after startup when refreshrate adaption is enabled (this came up as a bug with new activeae now as it listens to ondevicelost messages and therefore suspends the audio engine ;) ).
[ios/osx] - prepare to call the CAEFactory::DeviceChange() callback