update zenemy 
@here Z-ENEMY 1.28  From: Dk & Enemy (z-enemy)

Performance improvements:
- Bitcoin Diamond +7-8%, Hex 4-5% and +3-5% for x16r/s, x17, bitcore, c11, sonoa, etc...

Other changes:
- Added --no-nvml switch to disable NVML monitoring (useful to reduce load on low end CPUs)
- After several tests we recommend using intensity 22 on 1080ti cards on x16r algo (and perhaps others)