adding c5.0 impl

c50exact/contin.o

c50exact/cpp_wrapper/Makefile

c50exact/cpp_wrapper/array.c

c50exact/cpp_wrapper/array.h

c50exact/cpp_wrapper/array.o

c50exact/cpp_wrapper/clist.cpp

c50exact/cpp_wrapper/clist.h

c50exact/cpp_wrapper/clist.o

c50exact/cpp_wrapper/cmap.cpp

c50exact/cpp_wrapper/cmap.h

c50exact/cpp_wrapper/cmap.o

c50exact/cpp_wrapper/cpp_wrapper.a

c50exact/cpp_wrapper/file_tools.cpp

c50exact/cpp_wrapper/file_tools.h

c50exact/cpp_wrapper/file_tools.o

c50exact/cpp_wrapper/tags

c50exact/cpp_wrapper/tree_serializer.cpp

c50exact/cpp_wrapper/tree_serializer.h

c50exact/cpp_wrapper/tree_serializer.o

c50exact/debug.c