Resume training support changes reflected in the run_training.py file

[Sadam1195]

Commit for resuming training was merged successfully but few changes weren't added in the master branch of the run_training.py file.

[aashana94]

I am trying to run metrics using the original implementation of Progressive Growing of GAN by tkarras but I am not able to, has anyone any luck? or can help me with it?

For FID I get - AttributeError: module 'metrics' has no attribute 'frechet_inception_distance'
For IS i get - ValueError: Shape must be rank 2 but is rank 1 for 'MatMul' (op: 'MatMul') with input shapes: [2048], [2048,1008].

My training went fine. The results of the images look decent. My input image size is 256*256.
SWD and MS-SSIM have worked fine.

https://github.com/tkarras/progressive_growing_of_gans