新增异步意图识别器和相关功能，优化意图识别和槽位填充逻辑，支持异步处理和多线程检索，改进API调用的错误处理和日志记录，增强文档检索和关键词提取功能。

rag2_0/intent_recognition/__init__.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
 
 from .ProfessionalNounVector import ProfessionalNounVectorizer, ProfessionalNounRetriever
-from .IntentRecognition import IntentRecognizer
+from .IntentRecognition import IntentRecognizer, AsyncIntentRecognizer
 from .DataModels import Term, TermList, Classification, QueryRewrite