added xcode project for source control

DerivedData/ModuleCache/Session.modulevalidation

...d/Objects-normal/x86_64/Project 1 statistics.LinkFileList

...ts-normal/x86_64/Project 1 statistics_dependency_info.dat

...ect 1 statistics.build/Objects-normal/x86_64/p1_library.d

...t 1 statistics.build/Objects-normal/x86_64/p1_library.dia

...ect 1 statistics.build/Objects-normal/x86_64/p1_library.o

.../Project 1 statistics.build/Objects-normal/x86_64/stats.d

...roject 1 statistics.build/Objects-normal/x86_64/stats.dia

.../Project 1 statistics.build/Objects-normal/x86_64/stats.o

...ct 1 statistics.build/Objects-normal/x86_64/stats_tests.d

... 1 statistics.build/Objects-normal/x86_64/stats_tests.dia

...ct 1 statistics.build/Objects-normal/x86_64/stats_tests.o

...roject 1 statistics-all-non-framework-target-headers.hmap

...istics.build/Project 1 statistics-all-target-headers.hmap

...tatistics.build/Project 1 statistics-generated-files.hmap

...istics.build/Project 1 statistics-own-target-headers.hmap

...tatistics.build/Project 1 statistics-project-headers.hmap

...ebug/Project 1 statistics.build/Project 1 statistics.hmap

... 1 statistics.build/Debug/Project 1 statistics.build/dgph

...1 statistics.build/Debug/Project 1 statistics.build/dgph~