Made API models internal. Removed Discord.Net.API.

src/Discord.Net.WebSocket/Extensions/EntityExtensions.cs

@@ -0,0 +1,12 @@
+namespace Discord.WebSocket
+{
+    internal static class EntityExtensions
+    {
+        public static Game ToEntity(this API.Game model)
+        {
+            return new Game(model.Name,
+                model.StreamUrl.GetValueOrDefault(null),
+                model.StreamType.GetValueOrDefault(null) ?? StreamType.NotStreaming);
+        }
+    }
+}