Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	81532.82	318.49	10MH	122.650	2	256	6.6.2
2	80361.30	313.91	10MH	124.438	2	256	6.8.2
3	73158.78	286.90	10MH	136.689	2	255	6.8.2
4	9300.99	72.66	10MH	1075.154	1	128	6.5.0