Initial commit: Complete open-source Decal rebuild

All 5 phases of the open-source Decal rebuild:

Phase 1: 14 decompiled .NET projects (Interop.*, Adapter, FileService, DecalUtil)
Phase 2: 10 native DLLs rewritten as C# COM servers with matching GUIDs
  - DecalDat, DHS, SpellFilter, DecalInput, DecalNet, DecalFilters
  - Decal.Core, DecalControls, DecalRender, D3DService
Phase 3: C++ shims for Inject.DLL (D3D9 hooking) and LauncherHook.DLL
Phase 4: DenAgent WinForms tray application
Phase 5: WiX installer and build script

25 C# projects building with 0 errors.
Native C++ projects require VS 2022 + Windows SDK (x86).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Managed/Decal.Adapter/Decal.Adapter.Wrappers/ViewControls.cs

@@ -0,0 +1,72 @@
+using System;
+using System.Collections.Generic;
+using Decal.Interop.Inject;
+
+namespace Decal.Adapter.Wrappers;
+
+[CLSCompliant(true)]
+public class ViewControls : MarshalByRefObject, IDisposable
+{
+	private ViewWrapper myParent;
+
+	private Dictionary<string, IControlWrapper> myControls;
+
+	private bool isDisposed;
+
+	[CLSCompliant(false)]
+	public IControlWrapper this[string controlName]
+	{
+		get
+		{
+			if (myControls.ContainsKey(controlName))
+			{
+				return myControls[controlName];
+			}
+			IControlWrapper controlWrapper = ControlRegistry.CreateInstance(myParent[controlName]);
+			myControls.Add(controlName, controlWrapper);
+			return controlWrapper;
+		}
+		set
+		{
+			if (value == null)
+			{
+				throw new ArgumentNullException("value");
+			}
+			myControls[controlName] = value;
+			myParent[controlName] = value.Underlying as IControl;
+		}
+	}
+
+	internal ViewControls(ViewWrapper parent)
+	{
+		myParent = parent;
+		myControls = new Dictionary<string, IControlWrapper>();
+	}
+
+	~ViewControls()
+	{
+		Dispose(disposing: false);
+	}
+
+	public void Dispose()
+	{
+		Dispose(disposing: true);
+		GC.SuppressFinalize(this);
+	}
+
+	private void Dispose(bool disposing)
+	{
+		if (!isDisposed && disposing && myParent != null)
+		{
+			foreach (IControlWrapper value in myControls.Values)
+			{
+				if (value is IDisposable disposable)
+				{
+					disposable.Dispose();
+				}
+			}
+			myParent = null;
+		}
+		isDisposed = true;
+	}
+}