[Table Transformer] Add Transformers-native checkpoints (#26928)

* Improve conversion scripts

* Fix paths

* Fix style

src/transformers/models/table_transformer/convert_table_transformer_original_pytorch_checkpoint_to_pytorch.py → src/transformers/models/table_transformer/convert_table_transformer_to_hf.py

@@ -12,7 +12,7 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-"""Convert Table Transformer checkpoints.
+"""Convert Table Transformer checkpoints with timm-backbone.
 
 URL: https://github.com/microsoft/table-transformer
 """

utils/not_doctested.txt

@@ -809,7 +809,8 @@ src/transformers/models/t5/modeling_flax_t5.py
 src/transformers/models/t5/modeling_t5.py
 src/transformers/models/t5/modeling_tf_t5.py
 src/transformers/models/table_transformer/configuration_table_transformer.py
-src/transformers/models/table_transformer/convert_table_transformer_original_pytorch_checkpoint_to_pytorch.py
+src/transformers/models/table_transformer/convert_table_transformer_to_hf.py
+src/transformers/models/table_transformer/convert_table_transformer_to_hf_no_timm.py
 src/transformers/models/tapas/configuration_tapas.py
 src/transformers/models/tapas/convert_tapas_original_tf_checkpoint_to_pytorch.py
 src/transformers/models/tapas/modeling_tapas.py