[Feat] Integrate Wechat (#3087)

Co-authored-by: lyz <lyz@simplehpc.com>
Co-authored-by: Wendong-Fan <133094783+Wendong-Fan@users.noreply.github.com>

Author: 3 people

camel/toolkits/__init__.py

@@ -40,6 +40,7 @@
 from .arxiv_toolkit import ArxivToolkit
 from .slack_toolkit import SlackToolkit
 from .whatsapp_toolkit import WhatsAppToolkit
+from .wechat_official_toolkit import WeChatOfficialToolkit
 from .twitter_toolkit import TwitterToolkit
 from .open_api_toolkit import OpenAPIToolkit
 from .retrieval_toolkit import RetrievalToolkit
@@ -103,6 +104,7 @@
     'SearchToolkit',
     'SlackToolkit',
     'WhatsAppToolkit',
+    'WeChatOfficialToolkit',
     'ImageGenToolkit',
     'TwitterToolkit',
     'WeatherToolkit',