Add optional CUDA neighbor-loop and RunSimulationCUDA#139

AhmedSalih3d wants to merge 2 commits intocodex/optimize-neighborlist-code-performanceAhmedSalih3d/SPHExample:codex/optimize-neighborlist-code-performancefrom

codex/add-cuda-support-for-stillwedgemdbcAhmedSalih3d/SPHExample:codex/add-cuda-support-for-stillwedgemdbcCopy head branch name to clipboard