added agent framework folder

Author: evchaki

semantic-kernel/Frameworks/agent/TOC.yml

@@ -0,0 +1,6 @@
+- name: Agent Framework   
+  href: agent-framework.md
+- name: Personas
+  href: personas.md
+- name: Agents
+  href: agents.md

semantic-kernel/Frameworks/agent/agent-framework.md

@@ -0,0 +1,10 @@
+---
+title: Agent Framework
+description: Details on the Agent Framework in Semantic Kernel
+zone_pivot_groups: programming-languages
+author: crickman            
+ms.topic: tutorial
+ms.author: crickman
+ms.date: 09/28/2024
+ms.service: semantic-kernel
+---