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=2.742e-05; Maximum converted output difference=2.742e-05.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d63a7e56ad8b2ab83468695138fb49a1f5c4185c00a7f255946193e459f213ac
+size 1417812840