start work at receive auth

producer/api/include/producer/producer.h

producer/api/src/producer_impl.cpp

producer/api/src/producer_impl.h

producer/api/src/request_handler_tcp.cpp

producer/api/src/request_handler_tcp.h

producer/api/unittests/test_producer_impl.cpp

producer/api/unittests/test_request_handler_filesystem.cpp

producer/api/unittests/test_request_handler_tcp.cpp

producer/api/unittests/test_request_pool.cpp

receiver/CMakeLists.txt

receiver/src/connection.cpp

receiver/src/connection.h

receiver/src/connection_authorizer.cpp

receiver/src/connection_authorizer.h

receiver/src/receiver_config.cpp

receiver/src/receiver_config.h

receiver/unittests/mock_receiver_config.cpp

receiver/unittests/test_authorizer.cpp

receiver/unittests/test_config.cpp

receiver/unittests/test_connection.cpp