This component is a write-only Terminal server that sends its input
to an Audio_out session. The input is assumed to be interleaved
stereo samples in 32-bit floating point format. It can be combined
with the _pipe_ utitily to play audio files.

! <start name="raw_audio_sink">
!   <resource name="RAM" quantum="4M"/>
!   <provides>
!     <service name="Terminal"/>
!   </provides>
!   <route>
!     <any-service> <parent/> <any-child/> </any-service>
!   </route>
! </start>
! <start name="pipe">
!   <resource name="RAM" quantum="4M"/>
!   <config>
!     <libc stdin="/fs/test.f32" stdout="/terminal"/>
!     <vfs>
!       <dir name="fs"> <fs/> </dir>
!       <terminal/>
!     </vfs>
!   </config>
!   <route>
!     <any-service> <parent/> <any-child/> </any-service>
!   </route>
! </start>
