tests/test_nanshe_learner.py: Added a test for nanshe.nanshe_learner.generate_neurons using 3D data.
tests/test_nanshe_learner.py: Added support for testing 3D datasets with blocks using drmaa.
tests/test_nanshe_learner.py: Added a test for nanshe.nanshe_learner.main using 3D and blocks with drmaa.
tests/test_nanshe_learner.py: Added a test for nanshe.nanshe_learner.generate_neurons_io_handler using 3D and blocks with drmaa.
tests/test_nanshe_learner.py: Added a test for nanshe.nanshe_learner.generate_neurons_blocks using 3D and blocks with drmaa.