transformers

e20faa6f - Add BeitForSemanticSegmentation (#14096)

Add BeitForSemanticSegmentation (#14096) * Add first draft * Make forward pass work * Improve conversion script * Add notebook that checks if it works * Add BeitForSemanticSegmentation to the tests * More improvements * Make BeitForSemanticSegmentation consistent with Segformer * Small bug fix * Add BeitForSemanticSegmentation to docs * Make sure model doesn't output hidden states when the user doesn't want to * Make it possible to convert the large model * Fix issue * Fix conversion script for large model * Add auxiliary_head option to semantic segmentation model * Apply suggestions from @sgugger's review * Apply suggestions from code review * Fix failing test Co-authored-by: Lysandre <lysandre.debut@reseau.eseo.fr>