Added tuned lens for llama-2-13b trained on redpj sample

lens/meta-llama/Llama-2-13b-hf/config.json

@@ -0,0 +1 @@
+{"base_model_name_or_path": "meta-llama/Llama-2-13b-hf", "d_model": 5120, "num_hidden_layers": 40, "bias": true, "base_model_revision": null, "unembed_hash": "1f421a88f21fcda6d1c8c17a481c46918d355f8b06cfc77b05cf738e11b55f7a", "lens_type": "linear_tuned_lens"}

lens/meta-llama/Llama-2-13b-hf/params.pt

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f87b2a5f2b3125d9e49343cbac244b901795e3af4117ec0f6ee428f79027778d
+size 2097581027