Update iTunes integration

We're updating the interop version and moving to the embedded interop
types method. This should start working again now.
Start splitting AudioSource from codec
Add ResourceWebRequestFactory

This lets us use resx:// for Image Uris in WPF to get out of the .resx
file.
Add ActivationSlider

A slider with an underlying progressbar meant to display a current value
in correlation with the slider.
Add DefautlDevice

This is a dummy IAudioDevice type that displays its name as "Default" and
can be type checked to replace with the real IAudioDevice.
Include settings with Raygun errors