Added first files

.gitmodules

SConstruct

bin/gdpd.gdns

bin/libgdpd.gdnlib

src/gdlibrary.cpp

src/gdpd.cpp

src/gdpd.hpp

src/godot-cpp

src/libpd

src/rtaudio/RtAudio.cpp

src/rtaudio/RtAudio.h

src/rtaudio/RtAudio.os