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=1.993e+00; Maximum crossload hidden layer difference=1.552e-04;
Maximum conversion output difference=1.991e+00; Maximum conversion hidden layer difference=1.552e-04;


CAUTION: The maximum admissible error was manually increased to 2.0!

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1765bdd93da60ef9f97f927cf10647a467f46f4149975a951ef24298ce3d6231
+size 345823752