test/test_rank_filter.py: Added test suite for Python that is equivalent to test/test_rank_filter.cxx to verify that the module works ok and is accurate. Fixes #5.
test/test_rank_filter.py: Added test suite for Python that is equivalent to test/test_rank_filter.cxx to verify that the module works ok and is accurate. Fixes #5.

DudLab/rank_filter,nanshe-org/rank_filter,jakirkham/rank_filter,DudLab/rank_filter,nanshe-org/rank_filter,DudLab/rank_filter,jakirkham/rank_filter,jakirkham/rank_filter,nanshe-org/rank_filter