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=1.758e-06; Maximum crossload hidden layer difference=1.702e+00;
Maximum conversion output difference=1.758e-06; Maximum conversion hidden layer difference=1.702e+00;


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 sha256:2431e1599316d5e77e99ccb2b1efad56f7d840fcb548c9cc6e2b15b5f0ed7b93
+size 1785291912