Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	26195.84	467.78	1MH	38.174	2	56	6.12.2
2	24066.81	429.76	1MH	41.551	2	56	6.6.1
3	23932.61	427.37	1MH	41.784	2	56	6.12.2
4	15137.98	270.32	1MH	66.059	2	56	6.6.1