splitting traits into own files

OpenRa.Game/Traits/Tree.cs

@@ -0,0 +1,24 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRa.Game.Graphics;
+using IjwFramework.Types;
+
+namespace OpenRa.Game.Traits
+{
+	class Tree : IRender
+	{
+		Sprite Image;
+
+		public Tree(Sprite treeImage)
+		{
+			Image = treeImage;
+		}
+
+		public IEnumerable<Pair<Sprite, float2>> Render(Actor self)
+		{
+			yield return Pair.New(Image, 24 * (float2)self.Location);
+		}
+	}
+}