Add TF weights

Model converted by the `transformers`' `pt_to_tf` CLI -- all converted model outputs and hidden layers were validated against its Pytorch counterpart. Maximum crossload output difference=3.433e-05; Maximum converted output difference=3.433e-05.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7ab8d99474ea0d392d63fce5407f4d034650f8b7b6d836f574f095a31468da05
+size 2235939688