Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	1840.79	230.10	1MH	543.244	1	8	6.8.2
2	1838.97	459.74	1MH	543.783	1	4	6.16.4
3	1696.06	565.35	1MH	589.602	1	3	6.7.0
4	1288.63	429.54	1MH	776.017	1	3	6.8.2
5	1230.61	410.20	1MH	812.602	1	3	6.10.0