add: add yahoo finance tool

[KennanYang]

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[KennanYang]

本次提交针对蚂蚁开源轻训营：issue252
查看详情
Enhancements for more tools/工具插件接入。提交了yahoo fianace工具

提交了两个文件：

测试记录截图补充：

[KennanYang]

#252