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=1.073e-05; Maximum converted output difference=1.073e-05.

tf_model.h5

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:0d6ed40499ed2b7eecb9841f62d50b10cf40ec597b843640425ff075a3425157
+size 1112441536