PackageFolderTreeNode: Allow .exe extension in addition to .dll.

ILSpy/TreeNodes/PackageFolderTreeNode.cs

@@ -67,7 +67,8 @@ namespace ICSharpCode.ILSpy.TreeNodes
 			}
 			foreach (var entry in root.Entries.OrderBy(e => e.Name))
 			{
-				if (entry.Name.EndsWith(".dll", StringComparison.OrdinalIgnoreCase))
+				if (entry.Name.EndsWith(".dll", StringComparison.OrdinalIgnoreCase)
+					|| entry.Name.EndsWith(".exe", StringComparison.OrdinalIgnoreCase))
 				{
 					var asm = root.ResolveFileName(entry.Name);
 					if (asm != null)