Add example to launch Xila and small refactoring

[AlixANNERAUD]

• Add authentication command to shell module
• Refactor error handling and input parsing in shell module; add authentication error type
• Refactor device management in virtual file system; enhance Mount_device to accept static paths and add Get_devices_from_path method
• Refactor graphics module to improve pointer table initialization and access
• Refactor File_drive_device_type to adjust truncate behavior and implement Get_block_size method; add unit tests for read/write functionality
• Add Native.rs example
• Refactor lifetime parameters in various implementations to use '_ instead of explicit lifetimes
• Add error handling for virtual file system initialization and implement uninitialization method
• Refactor user manager initialization to use OnceLock for thread-safe instance management
• Remove hardcoded user environment variable from integration test
• Refactor graphics manager initialization to handle multiple initializations and improve error handling
• Use new c"" literal for C string
• Refactor virtual file system to improve file system access and rename Mount_device to Mount_static_device
• Refactor virtual file system interactions to use Mount_static_device for improved clarity and consistency
• Add new optional modules for Executable, File_system, and Host_bindings in Cargo.toml