Re-introduce prototype code

src/game/GameLogic.Output.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+
+namespace GameJamDungeon
+{
+  public partial class GameLogic
+  {
+    public static class Output
+    {
+      public readonly record struct StartGame();
+
+      public readonly record struct SetInventoryMode(List<InventoryItem> Inventory);
+
+      public readonly record struct HideInventory();
+
+      public readonly record struct SetPauseMode(bool IsPaused);
+
+      public readonly record struct ShowMiniMap();
+
+      public readonly record struct HideMiniMap();
+
+      public readonly record struct GameOver();
+    }
+  }
+}