* Add type annotations to TFConvNextDropPath
* Use tf.debugging.assert_equal for TFConvNextEmbeddings shape check
* Add TensorFlow implementation of ConvNeXTV2
* check_docstrings: add TFConvNextV2Model to exclusions
TFConvNextV2Model and TFConvNextV2ForImageClassification have docstrings
which are equivalent to their PyTorch cousins, but a parsing issue prevents them
from passing the test.
Adding exclusions for these two classes as discussed in #25558.
* Add out_indices to backbones, deprecate out_features
* Update - can specify both out_features and out_indices but not both
* Add backbone mixin tests
* Test tidy up
* Add test_backbone for convnext
* Remove redefinition of method
* Update for Dinat and Nat backbones
* Update tests
* Smarter indexing
* Add checks on config creation for backbone
* PR comments