A benchmark for orbital elements

[pleroy]

Run on (4 X 2712 MHz CPU s)
CPU Caches:
  L1 Data 32 KiB (x2)
  L1 Instruction 32 KiB (x2)
  L2 Unified 256 KiB (x2)
  L3 Unified 3072 KiB (x1)
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Benchmark                                                       Time             CPU   Iterations
-------------------------------------------------------------------------------------------------
OrbitalElementsBenchmark/ComputeOrbitalElements        26873351050 ns   26117187500 ns            2
OrbitalElementsBenchmark/ComputeOrbitalElements        27432409050 ns   25132812500 ns            2
OrbitalElementsBenchmark/ComputeOrbitalElements        34241835950 ns   21359375000 ns            2
OrbitalElementsBenchmark/ComputeOrbitalElements_mean   29515865350 ns   24203125000 ns            3
OrbitalElementsBenchmark/ComputeOrbitalElements_median 27432409050 ns   25132812500 ns            3
OrbitalElementsBenchmark/ComputeOrbitalElements_stddev 4102345067 ns   2511460548 ns            3

#3493