Feature/Graphical shell

[AlixANNERAUD]

• Refactor graphics module to simplify display and buffer management, removing const generics and enhancing initialization parameters
• Comment out Wayland event loop initialization in Inner_type::New for future consideration
• Update Graphics initialization and simplify display creation in integration tests
• Add graphical shell module with integration tests and dependencies
• Fix color component bit manipulation in Color_RGBA8888_type methods
• Introduce LVGL module and update references across graphics components
• Refactor Graphics module to use Get_minimal_buffer_size and update LVGL references
• Optimize Draw method in Window_type driver for improved pixel processing and color conversion
• Continue to work on graphical shell
• Refactor pixel rendering in Window_type driver for improved efficiency and add redraw request handling
• Refactor Graphics initialization to support input type specification and update related components
• Enable Montserrat font sizes 18 and 28 in lv_conf.h
• Refactor Desk_type to improve tile handling and icon creation; update Drawer and Dock initialization
• Split color module in a folder, add color module with RGB888, RGB565, and palette support; implement color manipulation functions
• Refactor input handling by organizing input-related modules, adding key and state types, and implementing binding callback for device input
• Add keyboard and pointer device support to Window_screen module; refactor device initialization
• Add keyboard input support and refactor color handling in graphics module
• Refactor Shell module by removing Terminal support, updating Shell_type structure, and adjusting Home button styles; add keyboard device support in integration tests
• Add Terminal module with integration tests and device handling; update Cargo.toml to include Terminal
• Add Event module with Event_type and Event_code_type definitions; enhance key handling in Key module and update Window module for event processing
• Update lv_conf.h to enable UNSCII_8 font support
• Refactor Desk module to use Event_code_type for event handling; update Home event sending method
• Add error handling for object creation failures in Terminal module; refactor Terminal_type initialization and event handling
• Refactor Virtual File System to support lifetime parameters; enhance device mounting and path handling
• Remove unnecessary locking in Manager methods to simplify window management
• Fix RGBA8888 color assertions to correct expected values for color components
• Update Window_screen initialization to include additional return value in integration test
• Refactor Window_get_event_code to return u32 and update event handling logic
• Implement Display trait for Error_type to enhance error messaging
• Fix type annotation for Virtual_file_system in Standard_type to ensure correct lifetime specification
• Refactor Desk_type to optimize window creation and improve graphics locking mechanism
• Continue to work on terminal
• Implement Read_line method for Virtual_file_system and associated components to enhance file reading capabilities
• Refactor Read_line method in Standard_type to utilize Virtual_file_system's Get_instance for improved readability and efficiency
• Implement Read_line methods for Device_trait and File_system_traits to enhance line reading functionality
• Refactor File_system_type to return a reference to Underlying_file instead of cloning it for improved performance
• Implement Read_line method in Terminal_type and refactor Read_input to use String for improved functionality