[GLCC] GitLink Code Camp (CCF GitLink 开源编程夏令营)

### Search before asking

- [X] I had searched in the [issues](https://github.com/apache/eventmesh/issues?q=is%3Aissue) and found no similar issues.

### Feature Request

## 题目名称
source/sink connector插件实现与优化（任选插件）

## 题目描述
### 题目简介
source/sink connector为eventmesh事件同步插件，目前source/sink connector实现依赖了eventmesh-openconnect-java模块，可任选[source/sink connector](https://github.com/apache/eventmesh/tree/master/eventmesh-connectors)插件进行实现

### 编码任务
包括但不限于：
- 实现source/sink connector插件
- 评估完善现有接口功能
- 输出对应实现的source/sink connector插件demo与使用说明

### 技能要求和编程语言
- Java
- 对eventmesh有一定的了解
- 对选择的实现插件有一定的了解

### 预期成果
- source/sink connector插件可以正常运行
- 输出source/sink connector插件相关操作指引与使用文档

### 可参与人数
1人（项目由个人独立完成）

### 导师及联系方式
GitHub ID：xwm1992
Email：mikexue@apache.org

### 官方微信群

### Are you willing to submit PR?

- [ ] Yes I am willing to submit a PR!

Start by reviewing the eventmesh-connectors directory and the eventmesh-openconnect-java dependency to understand the available source/sink connector interfaces. Choose one connector, then define its implementation, demo, and usage documentation; done means the connector runs normally and its operation guide is complete.

Written by the indexing model from the issue text.