feat(agent): Multi agents v0.1 (#1044)

Co-authored-by: qidanrui <qidanrui@gmail.com>
Co-authored-by: csunny <cfqsunny@163.com>
Co-authored-by: Fangyin Cheng <staneyffer@gmail.com>

examples/awel/simple_rag_example.py

@@ -70,3 +70,12 @@ with DAG("simple_rag_example") as dag:
         >> model_task
         >> output_parser_task
     )
+
+
+if __name__ == "__main__":
+    if dag.leaf_nodes[0].dev_mode:
+        from dbgpt.core.awel import setup_dev_environment
+
+        setup_dev_environment([dag])
+    else:
+        pass