This patch reworks the unit test using the TestDriver audio driver. I
also recode the audio layer to match the design and drastically clean up
the code.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
Keeping separate directories for all of these files isn't the most
obvious way to do things. Instead, move everything into the same
directory.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>