Add Xcode project for example 1

Author: jpauwels

.gitignore

@@ -1,18 +1,16 @@
 /third_party_libraries/portaudio/*.*
-example_1_basic_spatialisation_rtaudio/projects/linux/bin/
 
+example_1_basic_spatialisation_rtaudio/projects/linux/.release_time
+example_1_basic_spatialisation_rtaudio/projects/linux/bin/
 example_1_basic_spatialisation_rtaudio/projects/linux/build/
-
 example_1_basic_spatialisation_rtaudio/projects/linux/README.md
-
 example_1_basic_spatialisation_rtaudio/projects/linux/example
+example_1_basic_spatialisation_rtaudio/projects/xcode/BasicSpatializationRTAudio.xcodeproj/project.xcworkspace
+example_1_basic_spatialisation_rtaudio/projects/xcode/BasicSpatializationRTAudio.xcodeproj/xcuserdata
+example_1_basic_spatialisation_rtaudio/projects/xcode/BasicSpatializationRTAudio.xcodeproj/xcshareddata
 
 example_2_basic_spatialisation_portAudio/src/libportaudio.a
-
 example_2_basic_spatialisation_portAudio/src/libportaudio.la
-
 example_2_basic_spatialisation_portAudio/src/pa_asio.h
-
 example_2_basic_spatialisation_portAudio/src/pa_linux_alsa.h
-
 example_2_basic_spatialisation_portAudio/src/portaudio.h