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=2.193e-05; Maximum converted output difference=2.193e-05.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:674d7ee7c76785c1db7d57ff45806aca890776d9a3d763c98f9689af254ddfdd
+size 438226204