Synopsis
		sflskernel < _in.rsf > _out.rsf match=_match.rsf adj=n wrap=n nk1=5 nk2=5

find kernel for convolution in ls sense, this is assuming 3 dimensional data and a 2d kernel

Parameters
		bool adj=n [y/n] if n takes kernel and outputs function, if y takes function and outputs kernel   string match= auxiliary input file name   int nk1=5 size of kernel in dimension 1   int nk2=5 size of kernel in dimension 2   bool wrap=n [y/n] if y, perform doughnut wrapping. if n, no wrapping