feat: add ICommandHookListener interface

CommandHook/ICommandHookListener.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+
+namespace CommandHook;
+
+public interface ICommandHookListener
+{
+    string ModId { get; }
+    IReadOnlyList<string> Commands { get; }
+    CommandRegistration Registration { get; }
+}