CMake: pjlib and pjlib-util (Linux only)
CMake: add pjnath (Linux only)
CMake: add pjmedia + third_party/srtp + third_party/resample (Linux only)
CMake: add pjmedia + minimal build for pjsua app + add some build options (Linux only)
CMake: add build summary
CMake: add speex, gsm and ilbc codecs + speex AEC
CMake: add l16, g722, g7221 codecs
CMake: add passthrough codecs
CMake: add intel IPP codecs
CMake: add opencore amrnb/amrwb codecs
add portaudio submodule
CMake: add portaudio support (Linux only)
CMake: add ssl (Linux only)
CMake: fix pjsua build on Linux
CMake: add MacOSX support