Python: Add initial scaffold for durabletask package (#2761)

* Add initial scaffold

* Update design

* Fix mypy and update design

* add additional style considered

* Address comments

* Fix test

* Update readmes

python/packages/durabletask/README.md

@@ -0,0 +1,31 @@
+# Get Started with Microsoft Agent Framework Durable Task
+
+[![PyPI](https://img.shields.io/pypi/v/agent-framework-durabletask)](https://pypi.org/project/agent-framework-durabletask/)
+
+Please install this package via pip:
+
+```bash
+pip install agent-framework-durabletask --pre
+```
+
+## Durable Task Integration
+
+The durable task integration lets you host Microsoft Agent Framework agents using the [Durable Task](https://github.com/microsoft/durabletask-python) framework so they can persist state, replay conversation history, and recover from failures automatically.
+
+### Basic Usage Example
+
+```python
+from durabletask import TaskHubGrpcWorker
+from agent_framework_durabletask import AgentWorker
+
+# Create the worker
+with DurableTaskSchedulerWorker(...) as worker:
+    
+    # Register the agent worker wrapper
+    agent_worker = DurableAIAgentWorker(worker)
+    
+    # Register the agent
+    agent_worker.add_agent(my_agent)
+```
+
+For more details, review the Python [README](https://github.com/microsoft/agent-framework/tree/main/python/README.md) and the samples directory.