unittests for connect ready

CMakeModules/astyle.cmake

common/cpp/CMakeLists.txt

common/cpp/include/system_wrappers/io.h

common/cpp/include/system_wrappers/system_io.h

common/cpp/include/system_wrappers/system_io_linux.cpp

common/cpp/src/system_io.cpp

worker/api/cpp/CMakeLists.txt

worker/api/cpp/include/worker/data_broker.h

worker/api/cpp/src/data_broker.cpp

worker/api/cpp/src/folder_data_broker.cpp

worker/api/cpp/src/folder_data_broker.h

worker/api/cpp/unittests/test_folder_broker.cpp

worker/api/cpp/unittests/test_worker_api.cpp