Consolidate calls to openai

Starting to abstract away the calls to openai

scripts/llm_utils.py

@@ -0,0 +1,16 @@
+import openai
+from config import Config
+cfg = Config()
+
+openai.api_key = cfg.openai_api_key
+
+# Overly simple abstraction until we create something better
+def create_chat_completion(messages, model=None, temperature=None, max_tokens=None)->str:
+    response = openai.ChatCompletion.create(
+        model=model,
+        messages=messages,
+        temperature=temperature,
+        max_tokens=max_tokens
+    )
+
+    return response.choices[0].message["content"]