bugfix: all memcopy for multiGPU running on default stream

src/gpu/VirtualFluids_GPU/Communication/ExchangeData27.cpp

src/gpu/VirtualFluids_GPU/GPU/CudaMemoryManager.cpp

...w/Compressible/CumulantK17Almighty/CumulantK17Almighty.cu

src/gpu/VirtualFluids_GPU/Parameter/CudaStreamManager.cpp