add new feat

[evell1992]

feat: 优化拓展sdk功能 添加api和plugin开发说明文档 新增/优化api接口 支持搜索功能 优化period适配插件和source provider 重写source provider manager为parser manager,适配插件和source provider 添加sqlite支持

[gitautomator[bot]]

Thanks to your contribution, the maintainers will review it as soon as they can!

[gitautomator[bot]]

The release note is either empty or incomplete, please consider: add new feat

[richardli1598]

牛逼！