New vision models

[Cdk29]

Here the news models.

I have tried some locally, it works fine a priori.

I took the freedom to rearrange a bit the order of inside R/vision_models.R to see more easily what was missing from https://docs.fast.ai/vision.models.xresnet.html. It will ease the long term maintenance too I think.

[Cdk29]

I don't know why there is older commits coming with it. I managed to create a merging conflic with a pyc dependencies that I had to merged.

Edit : here a link explaining the behavior :
https://stackoverflow.com/questions/16306012/github-pull-request-showing-commits-that-are-already-in-target-branch

[turgut090]

@Cdk29 Could you create a new branch and PR from there, please?

[Cdk29]

@henry090 it does the same, the old commits came with it, it seems to be the normal yet weird behavior of github.

The files where the previous commit took place remains unchanged.

[turgut090]

Thanks! Please, open a new branch for new PRs =)

[Cdk29]

@henry090 haha okay I will !