Ianmacleod/add falcon 180b (#309)

* add falcon 180b

* also add regular and chat

Author: ian-scale

model-engine/model_engine_server/domain/use_cases/llm_model_endpoint_use_cases.py

@@ -102,6 +102,8 @@
         "falcon-7b-instruct": "tiiuae/falcon-7b-instruct",
         "falcon-40b": "tiiuae/falcon-40b",
         "falcon-40b-instruct": "tiiuae/falcon-40b-instruct",
+        "falcon-180b": "tiiuae/falcon-180B",
+        "falcon-180b-chat": "tiiuae/falcon-180B-chat",
     },
     LLMInferenceFramework.VLLM: {
         "mpt-7b": "mosaicml/mpt-7b",