0.7.1 release
https://github.com/fancyIX/sgminer-phi2-branch/releases/tag/5.6.1.3.b7b

[yescrypt] Added optimized binary kernels for rx 580 and Vega cards, 30% ~ 37% faster.
[yescrypt] Added GCN cross lane instructions in Navi kernel, over 3x faster.


rx 580: 5.1khs, vega 56: 9.7khs, rx 5700xt: 17.4khs