Add a map renderer (#3613)

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Content.MapRenderer/Painters/EntityData.cs

@@ -0,0 +1,20 @@
+using Robust.Client.GameObjects;
+
+namespace Content.MapRenderer.Painters
+{
+    public class EntityData
+    {
+        public EntityData(SpriteComponent sprite, float x, float y)
+        {
+            Sprite = sprite;
+            X = x;
+            Y = y;
+        }
+
+        public SpriteComponent Sprite { get; }
+
+        public float X { get; }
+
+        public float Y { get; }
+    }
+}