Pressure coupling is implemented, but buggy due to missing coordinate D2H and H2d and well as PBC reinitialization.
Disable pressure coupling with GPU update
Fix pressure coupling with GPU update
This fixes the pressure coupling Parrinello-Rahman and
Berendsen schemes when Update is offloaded to the GPU.
The coordinate scaling is performed on GPU. The PBC
data is also copied to device when periodic box is
updated by the pressure coupling.