Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	53044.77	414.41	1MH	18.852	1	128	6.5.0
2	23356.85	182.48	1MH	42.814	1	128	6.5.3
3	22668.03	177.09	1MH	44.115	1	128	6.5.3
4	7397.87	57.80	1MH	135.174	1	128	6.5.3