Data IO formats:

Curently all formats will map incoming data into a right-handed coordinate system.

This will be enforced to reduce orientation confusion.

For example:

analyze: orientation = 0 will map left-handed ->right-handed

nifti: will map all qfac from qfac - > right-handed (qfac = 1)

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Potentially bad bug: foo is a binary format object

foo[0] = zeros(64,64)

temp = foo[:,63,31,31]

However:

foo = newVol reassigns name foo to another piece of memory

as opposed to foo[:] = newVol