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=5.722e-06; Maximum converted output difference=5.722e-06.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:03852acaefd6cd1eb8112a68b0f348d608ea307ed1088192432f1db95c83a90b
+size 433508328