GitLab

* add group vit and fixed test (except slow)

* passing slow test

* addressed some comments

* fixed test

* fixed style

* fixed copy

* fixed segmentation output

* fixed test

* fixed relative path

* fixed copy

* add ignore non auto configured

* fixed docstring, add doc

* fixed copies

* Apply suggestions from code review

merge suggestions
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>

* resolve comment, renaming model

* delete unused attr

* use fix copies

* resolve comments

* fixed attn

* remove unused vars

* refactor tests

* resolve final comments

* add demo notebook

* fixed inconsitent default

* Apply suggestions from code review
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>

* Apply suggestions from code review
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>

* rename stage->stages

* Create single GroupViTEncoderLayer class

* Update conversion script

* Simplify conversion script

* Remove cross-attention class in favor of GroupViTAttention

* Convert other model as well, add processor to conversion script

* addressing final comment

* fixed args

* Update src/transformers/models/groupvit/modeling_groupvit.py
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: NielsRogge <48327001+NielsRogge@users.noreply.github.com>
Co-authored-by: Sylvain Gugger <35901082+sgugger@users.noreply.github.com>
Co-authored-by: Niels Rogge <nielsrogge@Nielss-MacBook-Pro.local>