implementing the enum parsing

[vincenzopalazzo]

We should be able to parse this kind of enum

pub enum CoffeeCommand {
    /// Install a single by name.
    #[clap(arg_required_else_help = true)]
    Install {
        plugin: String,
        #[arg(short, long, action = clap::ArgAction::SetTrue)]
        verbose: bool,
        #[arg(short, long, action = clap::ArgAction::SetTrue)]
        dynamic: bool,
    },
    /// upgrade a single repository.
    #[clap(arg_required_else_help = true)]
    Upgrade { repo: String },
    /// Print the list of plugins installed in cln.
    #[clap(arg_required_else_help = false)]
    List {},
    /// Remove a plugin installed in cln.
    #[clap(arg_required_else_help = true)]
    Remove { plugin: String },
    /// Manage Repository subcommand
    #[clap(arg_required_else_help = true)]
    Remote {
        #[clap(subcommand)]
        action: RemoteAction,
    },
    /// Configure coffee with the core lightning
    /// configuration
    #[clap(arg_required_else_help = true)]
    Setup { cln_conf: String },
    /// show the README file of the plugin
    #[clap(arg_required_else_help = true)]
    Show { plugin: String },
    /// clean up remote repositories storage information
    #[clap(arg_required_else_help = false)]
    Nurse {},
}

This introduce a good summary of what we should support at minimum

enum Message {
    Quit,
    Move { x: i32, y: i32 },
    Write(String),
    ChangeColor(i32, i32, i32),
}