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=7.391e-06; Maximum converted output difference=7.391e-06.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7a5b1f4865d09eaa42f5c27660916c3c9e9fc2126ea562c99da0f9834db70602
+size 442739392