in progress of implementing varied GSParams
(#343)
Merge branch '#343' of github.com:GalSim-developers/GalSim into #343
photon_vs_fft now can ran for different GSParams specified in the yaml file
(#343)
photon_vs_fft_plots.py can produce plots to compare behaviour with the varying GSParams - NOT TESTED YET
(#343)
Merge branch '#343' of github.com:GalSim-developers/GalSim into #343