Introduced named threads for better debugging

3d_party/rapidjson/include/rapidjson/internal/diyfp.h

3d_party/rapidjson/include/rapidjson/reader.h

3d_party/spd_log/include/spdlog/fmt/bundled/format.h

common/cpp/include/http_client/http_error.h

common/cpp/include/io/io.h

common/cpp/include/unittests/MockIO.h

common/cpp/src/http_client/curl_http_client.cpp

common/cpp/src/system_io/system_io.cpp

common/cpp/src/system_io/system_io.h

common/cpp/src/system_io/system_io_linux_mac.cpp

common/cpp/src/system_io/system_io_windows.cpp

consumer/api/cpp/include/consumer/consumer_error.h

consumer/api/cpp/src/server_data_broker.cpp

consumer/api/cpp/src/server_data_broker.h

consumer/api/cpp/unittests/test_server_broker.cpp

examples/pipeline/in_to_out/in_to_out.cpp

producer/api/cpp/src/producer_impl.h

producer/api/cpp/unittests/test_producer_impl.cpp

...cer/api/cpp/unittests/test_request_handler_filesystem.cpp

producer/api/cpp/unittests/test_request_handler_tcp.cpp