v0.1.0

• First release of ReXOR, a cross-platform Rust library with CLI app implementing XOR encryption/decryption
• Add encode and decode core functions for XOR encryption/decryption
• Add CLI with interactive menu, secure password input (input is hidden), and file dialogs
• Implement efficient file I/O with 8 KB chunked processing
• Add cross-platform support for Windows, Linux, and macOS
• Add CI/CD pipeline for building and publishing binaries via GitHub Actions
• Embed Windows icon using rcedit
• Publish crate to crates.io with documentation