Synopsis
		sfnpyConv < Fa.rsf flt=Fb.rsf > Fc.rsf norm=n mode=same

Implements conv(a,b) along the fast axis
a [file] : is taken from stdin
b [file] : is taken from "flt"
Requires both files to have the same sampling interval

mode [string]:
'full': returns an M+N-1 array, boundary effects are visible.
'same': returns a max(M,N) array, boundary effects are visible.

Parameters
		file flt= auxiliary input file name   string mode=same   bool norm=n [y/n] normalize output