Feature: add image reading tool for cli (CLI)

### What problem are you trying to solve?

I want to use image reading tool for cli with multimodal models. But the cli told me reading binary image file cannot be processed. 

### What would you like to happen?

Please add image reading tool for freebuff cli.

### Area

CLI (terminal client)

### Contribution

- [ ] I would be willing to open a PR for this