Added handling of pointers, huge memory improvements

BlendFileTester/Program.cs

@@ -1,11 +1,15 @@
 using System;
+using System.Linq;
 using BlendFile;
 
 var reader = new Reader("cube.blend");
 reader.Read();
 
-foreach (var obj in reader.GetObjects())
-{
-    Console.WriteLine(obj.GetType());
-    Console.WriteLine(obj.ToString());
-}
+var counts = reader.Objects.GroupBy(x => x.Key.Item2).ToList();
+
+foreach (var count in counts) Console.WriteLine($"{count.Key}: {count.Count()}");
+
+var Meshes = reader.GetObjects<BlendFile.DNA.Mesh>();
+var Objects = reader.GetObjects<BlendFile.DNA.Object>();
+Console.WriteLine($"Meshes: {Meshes.Count}");
+Console.WriteLine($"Objects: {Objects.Count}");