add mod_pocketsphinx

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@8913 d0543943-73ff-0310-b7d9-9358b9ac24b2

src/mod/asr_tts/mod_pocketsphinx/Makefile

+LOCAL_CFLAGS=`PKG_CONFIG_PATH=/usr/local/lib/pkgconfig pkg-config --cflags pocketsphinx sphinxbase`
+LOCAL_LDFLAGS=`PKG_CONFIG_PATH=/usr/local/lib/pkgconfig pkg-config --libs pocketsphinx sphinxbase`
+BASE=../../../..
+include $(BASE)/build/modmake.rules