Added spectral normalization for UNet_256 G and NLayer D#750

siddhartha-iitd wants to merge 1 commit intojunyanz:masterjunyanz/pytorch-CycleGAN-and-pix2pix:masterfrom

siddhartha-iitd:add_spectral_normsiddhartha-iitd/pytorch-CycleGAN-and-pix2pix:add_spectral_normCopy head branch name to clipboard