Added support for Hygon Dhyana CPU architecture#

Support for hardware detection and related heuristics has been implemented for the Hygon Dhyana derived from the first-gen AMD Zen which it shares most of its architectural details with.

Enabled PME offload support with OpenCL on NVIDIA and Intel GPUs#

Thanks to portability improvements, the previously disabled PME OpenCL offload is now enabled also on NVIDIA and Intel GPUs.

Fixed building on Solaris with GCC#

GROMACS now builds on Solaris with GCC (tested on illumos distribution openindiana, “Hipster” rolling release, using GCC 5, 6, 7, and 8).