Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	2317.05	579.26	1MH	431.583	1	4	6.6.2
2	2255.76	563.94	1MH	443.309	1	4	6.6.2
3	2241.01	560.25	1MH	446.228	1	4	6.7.0
4	2085.59	521.40	1MH	479.481	1	4	6.7.0
5	1952.44	488.11	1MH	512.180	1	4	6.7.0
6	1610.40	402.60	1MH	620.965	1	4	6.7.0
7	951.51	237.88	1MH	1050.957	1	4	6.7.0