Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	3850.43	481.30	1MH	259.711	1	8	6.19.2
2	2594.83	324.35	1MH	385.381	1	8	6.21.0
3	2217.77	277.22	1MH	450.904	1	8	6.19.2