addition of Rust model

Converted `pytorch_model.bin` via utility in [rust-bert](https://github.com/guillaume-be/rust-bert) using following command:
```
python3 utils/convert_model.py ../pytorch_model.bin
```
**libtorch:** libtorch-cxx11-abi-shared-with-deps-2.1.0+cu118
**rust-bert** commit/1f4d344668232da8e669e7fea1391c8829d5d1e3

rust_model.ot

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9db92b28d6fb0e5ab770b24ed27bde941d1f314a3c5e8c28d698025cc1807d7f
+size 1470048625