GitLab

* Initial commit for AutoBackbone & Backbone

* Added timm and clarified out_indices

* Swapped the example to out_indices

* fix toctree

* Update autoclass_tutorial.md

* Update backbones.md

* Update autoclass_tutorial.md

* Add dummy torch input instead

* Add dummy torch input

* Update autoclass_tutorial.md

* Update backbones.md

* minor fix

* Update docs/source/en/main_classes/backbones.md
Co-authored-by: Maria Khalusova <kafooster@gmail.com>

* Update docs/source/en/autoclass_tutorial.md
Co-authored-by: Maria Khalusova <kafooster@gmail.com>

* Added illustrations and explained backbone & neck

* Update docs/source/en/main_classes/backbones.md
Co-authored-by: Maria Khalusova <kafooster@gmail.com>

* Update backbones.md

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Co-authored-by: Maria Khalusova <kafooster@gmail.com>