EDDPolnMerge added

psrdada_cpp/detail/dada_input_stream.cpp

psrdada_cpp/effelsberg/edd/CMakeLists.txt

psrdada_cpp/effelsberg/edd/EDDPolnMerge.hpp

psrdada_cpp/effelsberg/edd/EDDRoach.hpp

psrdada_cpp/effelsberg/edd/EDDRoach_merge.hpp

psrdada_cpp/effelsberg/edd/src/EDDPolnMerge.cpp

psrdada_cpp/effelsberg/edd/src/EDDPolnMerge_cli.cpp

psrdada_cpp/effelsberg/edd/src/EDDRoach.cpp

psrdada_cpp/effelsberg/edd/src/EDDRoach_cli.cpp

psrdada_cpp/effelsberg/edd/src/EDDRoach_merge.cpp

psrdada_cpp/effelsberg/edd/src/EDDRoach_merge_cli.cpp

psrdada_cpp/effelsberg/edd/test/CMakeLists.txt

psrdada_cpp/effelsberg/edd/test/EDDPolnMergeTester.hpp

psrdada_cpp/effelsberg/edd/test/src/EDDPolnMergeTester.cpp