Added latent optimisation code for performing video-related tasks

[skymanaditya1]

Hi, I could not find the code for performing video-related tasks that were shown in the paper such as video interpolation, extrapolation, inversion, etc. I added these functionalities on top of your repository here - https://github.com/skymanaditya1/digan/blob/master/src/scripts/project.py.

Please let me know if this looks okay to you and if you would like, I can create a PR for the same (with the refactoring of course).

[sihyun-yu]

Hi,

you are right. We haven't yet refactored the previous on video-related tasks :(
I will check out the implementation soon. Thanks!