Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	56940.47	296.56	10MH	175.622	1	192	6.21.0
2	49307.23	513.62	1MH	20.281	1	96	6.21.0
3	48809.54	508.43	10MH	204.878	1	96	6.21.0