Added xxh to bring your favorite shell wherever you go through the ssh.

[anki-code]

What kind of change does this PR introduce?

• [x] Add a project
• [ ] Update a project
• [ ] Remove a project
• [ ] Add or update a category
• [ ] Change configuration
• [ ] Documentation
• [ ] Other, please describe:

Description:

You stuffed your command shell with aliases, tools, and colors but you lose it all when using ssh. The mission of xxh is to bring your favorite shell wherever you go through ssh without root access or system installations.

Checklist:

• [x] I have read the CONTRIBUTING guidelines.
• [x] I have not modified the README.md file. Projects are only supposed to be added or updated within the projects.yaml file since the README.md file is automatically generated.