[PATCH 2/2] move src/audio to src/modules/audio

[Andrei Kholodnyi]

> ?The more I think about this, I'm not sure that splitting up the modules
> ?like this is good since most of the modules just consist of one file
> ?each.
>
> I think a better split might be something like:
>
> src/modules/common, src/modules/audio, src/modules/espeak,
> src/modules/festival, src/modules/ivona, etc...

Yes, it is also possible,
I'm not sure whether we would need a separate dir for the single synth
source file.

What others think?