Synopsis
		sflpfL1 < dat.rsf match=mat.rsf > flt.rsf pred=pre.rsf liter=10 niter=25 perc=90.0 verb=y pef= lag=

Parameters
		string lag= file with PEF lags (optional)   int liter=10 number of CG iterations   file match= auxiliary input file name   int niter=25 number of POCS iterations [L1]   string pef= signal PEF file (optional)   float perc=90.0 percentage for sharpening [L1]   string pred= auxiliary output file name   bool verb=y [y/n] verbosity flag