Add TF weights

Model converted by the [`transformers`' `pt_to_tf` CLI](https://github.com/huggingface/transformers/blob/main/src/transformers/commands/pt_to_tf.py). All converted model outputs and hidden layers were validated against its Pytorch counterpart.

Maximum crossload output difference=7.952e-04; Maximum crossload hidden layer difference=3.315e-02;
Maximum conversion output difference=7.952e-04; Maximum conversion hidden layer difference=3.315e-02;


CAUTION: The maximum admissible error was manually increased to 0.05!

tf_model.h5

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+oid sha256:40ecea6544a8a7a684d822c7519d05aa2b9cadff93113b7a01a25f0135b30149
+size 290659576