tiny change
adding files to transform centers coordinates from epi to volume coords
Added option to normalize Volume coordinates to rd_normalizeCenterOfMass. This involves reading in centerOfMassVol file, switching 1st and 3rd dimensions of coords and centers, and flipping both the A-P and D-V axes. coords values and centers values can be negative in the flipped dimensions, but normalized centers values still fall between 0 and 1