Project stucture refactor

The project is now separated in multiple logic files instead of a single script.

See README.md file for a complete list of features and shortcuts.

What's Changed

• Increase/decrease seed by batch size when in batch mode by @Danamir in #44
• Interrupt image rendering by @Danamir in #46
• Script refactoring by @Pythongor and @Danamir in #47
• Display selected checkpoint & vae by @Danamir in #48

New Contributors

• @Pythongor made their first contribution in #47

Full Changelog: v1.0...v1.1