refactor cmake files

CMakeLists.txt

consumer/CMakeLists.txt

consumer/api/python/CMakeLists.txt

consumer/api/python/CMakeLists_Linux.cmake

consumer/api/python/dist_linux/CMakeLists.txt

consumer/api/python/dist_linux/MANIFEST.in

consumer/api/python/dist_linux/setup.py.in

deploy/build_env/Ubuntu16.04/Dockerfile

deploy/build_env/Ubuntu16.04/build.sh

deploy/build_env/Ubuntu16.04/install_libfabric.sh

deploy/build_env/centos/build.sh

deploy/build_env/manylinux2010/build.sh

deploy/build_env/manylinux2010/build_image.sh

docs/sphinx/CMakeLists.txt

examples/consumer/CMakeLists.txt

examples/consumer/getnext_broker_python/CMakeLists.txt

examples/pipeline/CMakeLists.txt

examples/pipeline/in_to_out_python/CMakeLists.txt

producer/CMakeLists.txt

producer/api/python/CMakeLists.txt