injest mode for receiver

common/cpp/include/common/data_structs.h

common/cpp/include/common/networking.h

examples/CMakeLists.txt

examples/pipeline/CMakeLists.txt

examples/pipeline/in_to_out/CMakeLists.txt

examples/pipeline/in_to_out/CMakeLists_separate.in

examples/pipeline/in_to_out/Makefile.in

examples/pipeline/in_to_out/check_linux.sh

examples/pipeline/in_to_out/check_windows.bat

examples/pipeline/in_to_out/in_to_out.cpp

examples/worker/getnext_broker/getnext_broker.cpp

producer/api/src/producer_impl.cpp

producer/api/src/request_handler_tcp.cpp

producer/api/unittests/test_producer_impl.cpp

producer/api/unittests/test_request_handler_tcp.cpp

receiver/src/request.cpp

receiver/src/request.h

receiver/src/request_factory.cpp

receiver/src/request_factory.h

receiver/src/request_handler_file_write.cpp