Potential feature: One-shot generative models based on single training image

[RichardObi]

For use-cases where there are very few training images (e.g. perhaps rare diseases), it could be nice to augment the data using one-shot generative models. Could this be something of interest to have in MONAI GenerativeModels? Example models include sinfusion, SinGAN, OneShotGAN, ConSinGAN