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=2.146e-05; Maximum converted output difference=2.146e-05.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:69184a2ab8f59ee8de3cf5022000961f61d70028492caa5641d413f9f370f63c
+size 1336926952