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=2.029e-04; Maximum crossload hidden layer difference=9.155e-05;
Maximum conversion output difference=2.029e-04; Maximum conversion hidden layer difference=9.155e-05;


CAUTION: The maximum admissible error was manually increased to 0.0003!

tf_model.h5

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+oid sha256:5e14ab532bd4b573c60e4f4c6639de6176db4c35c803cc7c0ba05fdb16e5b3de
+size 25943848