add python api, tests

consumer/api/cpp/include/asapo/consumer/consumer.h

consumer/api/cpp/src/consumer_impl.cpp

consumer/api/cpp/src/consumer_impl.h

consumer/api/cpp/unittests/test_consumer_impl.cpp

consumer/api/python/asapo_consumer.pxd

consumer/api/python/asapo_consumer.pyx.in

examples/consumer/simple-consumer/CMakeLists.txt

examples/consumer/simple-consumer/consume.cpp

examples/pipeline/in_to_out_python/check_linux.sh

examples/pipeline/in_to_out_python/check_windows.bat

examples/pipeline/in_to_out_python/in_to_out.py

producer/api/cpp/include/asapo/producer/producer.h

producer/api/cpp/src/producer_impl.cpp

producer/api/cpp/src/producer_impl.h

producer/api/cpp/unittests/test_producer_impl.cpp

producer/api/python/asapo_producer.pxd

producer/api/python/asapo_producer.pyx.in

tests/automatic/consumer/consumer_api_python/check_linux.sh

.../automatic/consumer/consumer_api_python/check_windows.bat

tests/automatic/consumer/consumer_api_python/consumer_api.py