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=1.907e-05; Maximum crossload hidden layer difference=7.904e-03;
Maximum conversion output difference=1.907e-05; Maximum conversion hidden layer difference=7.904e-03;


CAUTION: The maximum admissible error was manually increased to 0.1!

tf_model.h5

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+version https://git-lfs.github.com/spec/v1
+oid sha256:7493752886740e93460a9c979c07a80293a4e8a608bd6c8944e4916c9308fb28
+size 114787096