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=1.240e-05; Maximum converted output difference=1.240e-05.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c063ba3427b92183bb04bbff65f89e06838058606ae9fed8095594cd740af0ae
+size 328644696