ENH: Added adapter class to use general_transform API from MINC

BUG: Fixed order of parameters passed for storing Affine Transform in XFM

ENH: MINC XFM writer now support any 3D transform based on MatrixOffsetTransformBase

Change-Id: I2e4b4f21ff10359b08a6e502ea3b216776161902
Merge topic 'MINC2_TRANSFORM'

08ebd0f ENH: Added adapter class to use general_transform API from MINC