Add a native PulseAudio audio module.

This patch was originally developed by Matthias Clasen and submitted to:

http://www.redhat.com/archives/fedora-extras-commits/2009-September/msg09311.html

This patch depends on pulseaudiosupport.diff patch in speech-tools.

--- a/src/arch/festival/festival.cc

+++ b/src/arch/festival/festival.cc

@@ -344,6 +344,8 @@

 	proclaim_module("nas");

     if (esd_supported)

 	proclaim_module("esd");

+    if (pulse_supported)

+	proclaim_module("pulseaudio");

     if (sun16_supported)

 	proclaim_module("sun16audio");

     if (freebsd16_supported)