Convert to python module named autogpt.

Also fixed the Dockerfile.
Converting to module makes development easier.
Fixes coverage script in CI and test imports.

autogpt/call_ai_function.py

@@ -0,0 +1,29 @@
+from autogpt.config import Config
+cfg = Config()
+
+from autogpt.llm_utils import create_chat_completion
+
+
+# This is a magic function that can do anything with no-code. See
+# https://github.com/Torantulino/AI-Functions for more info.
+def call_ai_function(function, args, description, model=None):
+    """Call an AI function"""
+    if model is None:
+        model = cfg.smart_llm_model
+    # For each arg, if any are None, convert to "None":
+    args = [str(arg) if arg is not None else "None" for arg in args]
+    # parse args to comma separated string
+    args = ", ".join(args)
+    messages = [
+        {
+            "role": "system",
+            "content": f"You are now the following python function: ```# {description}\n{function}```\n\nOnly respond with your `return` value.",
+        },
+        {"role": "user", "content": args},
+    ]
+
+    response = create_chat_completion(
+        model=model, messages=messages, temperature=0
+    )
+
+    return response