Add JTransform as dependency
Add fft and ifft interfaces
Add Abstract(I)FftIterable
Add Abstract(I)FftImage
Add Smooth Number Utility

A class to determine the next smooth number.  This is required so that
we can find the fast fft sizes.  Research and implemention performed by
Johannes Schindelin.
Add op to compute fft size
Add JTransform version of FFTMethods
Add FFTMethod wrapper ops
Add RaiRai fft/ifft
Add mines ops for tests
Add test