feat: add GraphRAG framework and integrate TuGraph (#1506)

Co-authored-by: KingSkyLi <15566300566@163.com>
Co-authored-by: aries_ckt <916701291@qq.com>
Co-authored-by: Fangyin Cheng <staneyffer@gmail.com>

dbgpt/rag/transformer/text2cypher.py

@@ -0,0 +1,10 @@
+"""Text2Cypher class."""
+import logging
+
+from dbgpt.rag.transformer.base import TranslatorBase
+
+logger = logging.getLogger(__name__)
+
+
+class Text2Cypher(TranslatorBase):
+    """Text2Cypher class."""