[AUR-411] Adopt to Example2 project (#28)

Add the chatbot from Example2. Create the UI for chat.

knowledgehub/contribs/promptui/logs.py

@@ -0,0 +1,16 @@
+class ResultLog:
+    """Callback getter to get the desired log result
+
+    The callback resolution will be as follow:
+        1. Explicit string name
+        2. Implicitly by: `get_<name>`
+        3. Pass through
+    """
+
+    @staticmethod
+    def _get_input(obj):
+        return obj["input"]
+
+    @staticmethod
+    def _get_output(obj):
+        return obj["output"]