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

test/Spectre.Console.Cli.Tests/Data/Settings/AnimalSettings.cs

@@ -0,0 +1,14 @@
+namespace Spectre.Console.Tests.Data;
+
+public abstract class AnimalSettings : CommandSettings
+{
+    [CommandOption("-a|--alive|--not-dead")]
+    [Description("Indicates whether or not the animal is alive.")]
+    public bool IsAlive { get; set; }
+
+    [CommandArgument(1, "[LEGS]")]
+    [Description("The number of legs.")]
+    [EvenNumberValidator("Animals must have an even number of legs.")]
+    [PositiveNumberValidator("Number of legs must be greater than 0.")]
+    public int Legs { get; set; }
+}