Coordinate management - fiber groups and ROIs

[wandell]

We are trying to use the feGet related to voxel coordinates and indices and so forth. The array of options is very large and somewhat confusing. Perhaps we can simplify.

Further, the creation of the ROI coordinates adds a +1 to the fiber group coordinates. So, there is an inconsistency in the numerical values. I don't see this documented adequately, and I am not sure why it should be this way.