[connection] Whether you plan to support the csvConnector

### Search before asking

- [ ] I had searched in the [issues](https://github.com/DTStack/chunjun/issues) and found no similar question.

- [ ] I had googled my question but i didn't get any help.

- [ ] I had read the documentation: [ChunJun doc](https://dtstack.github.io/chunjun) but it didn't help me.

### Description

If I want to make a csvSource, how to do it？？？？

### Code of Conduct

- [X] I agree to follow this project's [Code of Conduct](https://www.apache.org/foundation/policies/conduct)