Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	4468.30	558.54	1MH	223.799	1	8	6.12.1
2	4399.45	549.93	1MH	227.301	1	8	6.15.0
3	3247.54	405.94	1MH	307.925	1	8	6.12.2
4	2586.18	323.27	10MH	3866.704	1	8	6.15.3
5	2168.62	271.08	1MH	461.123	1	8	6.10.0