bug fix in collision kernel

src/gpu/VirtualFluids_GPU/LBM/GPUHelperFunctions/RunCollision.cuh

@@ -4,12 +4,15 @@
 #include <cuda_runtime.h>
 
 #include <basics/DataTypes.h>
+#include <basics/constants/NumericConstants.h>
 
 #include <lbm/collision/CollisionParameter.h>
 #include <lbm/collision/TurbulentViscosity.h>
 
 #include "LBM/GPUHelperFunctions/KernelUtilities.h"
 
+using namespace vf::basics::constant;
+
 namespace vf::gpu
 {