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

test/Spectre.Console.Cli.Tests/Utilities/CommandContextExtensions.cs

@@ -0,0 +1,25 @@
+namespace Spectre.Console.Cli;
+
+public static class CommandContextExtensions
+{
+    public static void ShouldHaveRemainingArgument(this CommandContext context, string name, string[] values)
+    {
+        if (context == null)
+        {
+            throw new ArgumentNullException(nameof(context));
+        }
+
+        if (values == null)
+        {
+            throw new ArgumentNullException(nameof(values));
+        }
+
+        context.Remaining.Parsed.Contains(name).ShouldBeTrue();
+        context.Remaining.Parsed[name].Count().ShouldBe(values.Length);
+
+        foreach (var value in values)
+        {
+            context.Remaining.Parsed[name].ShouldContain(value);
+        }
+    }
+}

test/Spectre.Console.Cli.Tests/Utilities/ModuleInitializerAttribute.cs

@@ -0,0 +1,8 @@
+#if !NET5_0_OR_GREATER
+namespace System.Runtime.CompilerServices;
+
+[AttributeUsage(AttributeTargets.Method, Inherited = false)]
+public sealed class ModuleInitializerAttribute : Attribute
+{
+}
+#endif