finished unit tests for inotify

producer/event_monitor_producer/src/common.h

...ucer/event_monitor_producer/src/folder_event_detector.cpp

producer/event_monitor_producer/src/folder_event_detector.h

producer/event_monitor_producer/src/inotify_event.cpp

producer/event_monitor_producer/src/inotify_event.h

.../event_monitor_producer/src/system_folder_watch_linux.cpp

...er/event_monitor_producer/src/system_folder_watch_linux.h

.../event_monitor_producer/src/system_folder_watch_windows.h

producer/event_monitor_producer/unittests/mock_inotify.h

...ent_monitor_producer/unittests/mock_system_folder_watch.h

...monitor_producer/unittests/test_folder_event_detector.cpp

...tor_producer/unittests/test_system_folder_watch_linux.cpp