added TilesetBuilder (about half-built)

OpenRA.TilesetBuilder/Program.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Windows.Forms;
+
+namespace OpenRA.TilesetBuilder
+{
+	static class Program
+	{
+		/// <summary>
+		/// The main entry point for the application.
+		/// </summary>
+		[STAThread]
+		static void Main(string[] args)
+		{
+			Application.EnableVisualStyles();
+			Application.SetCompatibleTextRenderingDefault(false);
+			Application.Run(new Form1(args.First()));
+		}
+	}
+}