refactor producer, start filemon producer

CMakeLists.txt

...ples/producer/dummy-data-producer/dummy_data_producer.cpp

producer/CMakeLists.txt

producer/api/include/producer/common.h

producer/api/include/producer/producer.h

producer/api/src/producer_impl.cpp

producer/api/src/producer_impl.h

producer/api/src/request.cpp

producer/api/src/request.h

producer/api/src/request_handler_filesystem.cpp

producer/api/src/request_handler_tcp.cpp

producer/api/unittests/test_producer.cpp

producer/api/unittests/test_producer_impl.cpp

producer/api/unittests/test_request_handler_filesystem.cpp

producer/api/unittests/test_request_handler_tcp.cpp

producer/folder_monitor_producer/CMakeLists.txt

producer/folder_monitor_producer/src/event_detector.cpp

producer/folder_monitor_producer/src/event_detector.h

producer/folder_monitor_producer/src/foldermon_main.cpp

...lder_monitor_producer/unittests/test_foldermon_config.cpp