Proof of concept for second audio for newline.

[lambdafu]

Just a proof of concept for #323. If you dump an audio foo.wav-enter next to foo.wav, it will be used for newline characters. Of course, there is a lot of extra configuration stuff missing around this.

[lexcast]

Hi @lambdafu
I like the idea, but this should be implemented as a plugin (like the default one), the plugin can handle the input and then call the playAudio function with the respective audio object.
And probably on its own package as I wouldn't want to add more audio files.