[Bug]: Updated downsample for new nifti format
[Bug]: Updated downsample for new nifti format


Former-commit-id: fbe0a32e9bd38d4776ff06cf9778a20c1a3ebb84 [formerly 47f54d40496ae4727b25673c0f2778213d83e4ce] [formerly faae32c04cddd5c80531098dff05fc205f43ca93 [formerly 02295e50b2fcb31928957fcd606b62532e04304a]]
Former-commit-id: 73a8f2f1a2219edcbaecd7db44dc2e4e25218d9c
Former-commit-id: 636542aabdfc038189aa3786d351e22435345958
neurodata/ndgrutedb,openconnectome/m2g,neurodata/ndgrutedb,neurodata/ndgrutedb,openconnectome/m2g,neurodata/ndgrutedb,openconnectome/m2g,neurodata/ndgrutedb,openconnectome/m2g,openconnectome/m2g,neurodata/ndgrutedb,neurodata/ndgrutedb,neurodata/ndgrutedb,openconnectome/m2g,neurodata/ndmg,openconnectome/m2g,openconnectome/m2g