Benchmark organization improvements to reuse code.

Recyclable.Collections.Benchmarks/Core/DataGenerator.cs

@@ -0,0 +1,20 @@
+namespace Recyclable.Collections.Benchmarks.Core
+{
+    public class DataGenerator
+    {
+		public static long[] EnumerateTestObjects(long testObjectCount)
+		{
+			var result = new long[testObjectCount];
+			Console.WriteLine("******* TEST DATA ARRAY CREATED *******");
+
+			Span<long> resultSpan = result;
+			for (int i = 0; i < testObjectCount; i++)
+			{
+				resultSpan[i] = i;
+			}
+
+			return result;
+		}
+
+    }
+}