Request for MolGAN integraton

[aaronmkts]

Love the repo and the examples of generative models that are currently on display. It would be great if you could include a GAN example such as the classic MolGAN model from the literature as a part of your torch molecules repo https://arxiv.org/abs/1805.11973. I have some dieas for implementation if this is of interest.

[liugangcode]

Thank you for your suggestions. We have noted this model and will consider whether we can incorporate MolGAN in the future update. In the meantime, you are welcome to open a pull request if you have any ideas for implementing the model.

[MandaKausthubh]

@liugangcode @aaronmkts: Opened a New PR for implementation of the MolGAN model. Please look into it and give feedback. If you think this is good please merge the code. Thank you.