feat(granite): Add model params for granite-code-8b

Something isn't quite working with this model yet, but the config should be
accurate at this point.

Branch: GraniteCodeSupport

Signed-off-by: Gabe Goodhart <[email protected]>

Author: gabe-l-hart

torchchat/model_params/Granite-8B-Code.json

@@ -0,0 +1,16 @@
+{
+    "block_size": 128000,
+    "dim": 4096,
+    "hidden_dim": 14336,
+    "n_heads": 32,
+    "n_local_heads": 8,
+    "n_layers": 36,
+    "rope_base": 10000000,
+    "vocab_size": 49152,
+    "use_hf_tokenizer": true,
+    "norm_eps": 0.00001,
+    "rope_scaling": null,
+    "attention_bias": true,
+    "feed_forward_bias": true,
+    "tie_word_embeddings": true
+}