tests/test_nanshe/test_learner.py: Change method of finding the locations of maxima to preserve the order of the basis images.
tests/test_nanshe/test_learner.py: Change method of finding the locations of maxima to preserve the order of the basis images.

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