ccminer with lyra2Z algo

special release for ccminer and pascal cards:

New binaries with faster lyra2Z algo. This one is obtained by compiling with compute_52,sm_52 instead of compute_61,sm_61.
The current gain of hashrate is of the order of 20%
Is included here the win32 version for windows.
Approximately same speed can be obtain by modifying the makefile on linux.

Added binaries compiled with cuda 9, leading to a 10% hashrate increase on lyra2z