Move Spectre.Console.Cli to it's own package

src/Spectre.Console.Cli/Internal/DelegateCommand.cs

@@ -0,0 +1,21 @@
+namespace Spectre.Console.Cli;
+
+internal sealed class DelegateCommand : ICommand
+{
+    private readonly Func<CommandContext, CommandSettings, int> _func;
+
+    public DelegateCommand(Func<CommandContext, CommandSettings, int> func)
+    {
+        _func = func;
+    }
+
+    public Task<int> Execute(CommandContext context, CommandSettings settings)
+    {
+        return Task.FromResult(_func(context, settings));
+    }
+
+    public ValidationResult Validate(CommandContext context, CommandSettings settings)
+    {
+        return ValidationResult.Success();
+    }
+}