Add persona_tool.py implementing the PersonaTool class

tools/persona_tool.py

@@ -0,0 +1,10 @@
+from base_tool import BaseTool
+
+class PersonaTool(BaseTool):
+    def __init__(self, persona_name):
+        super().__init__()
+        self.persona_name = persona_name
+
+    def perform_action(self):
+        # Implement the action specific to the persona
+        pass