moved Log, Stopwatch to FileFormats. Added Support/Timer.

OpenRa.FileFormats/Support/Log.cs

@@ -0,0 +1,19 @@
+using System.IO;
+
+namespace OpenRa
+{
+	public static class Log
+	{
+		static StreamWriter writer = File.CreateText("log.txt");
+
+		static Log()
+		{
+			writer.AutoFlush = true;
+		}
+
+		public static void Write(string format, params object[] args)
+		{
+			writer.WriteLine(format, args);
+		}
+	}
+}