Add missing export includes.

src/gpu/VirtualFluids_GPU/Kernel/Utilities/Mapper/ADKernelMapper/ADKernelMapper.h

@@ -4,6 +4,8 @@
 #include "Utilities/EnumMapper/EnumMapperImp.h"
 #include "Kernel//Utilities/KernelType.h"
 
+#include "VirtualFluids_GPU_export.h"
+
 #include <memory>
 #include <string>
 

src/gpu/VirtualFluids_GPU/Kernel/Utilities/Mapper/KernelMapper/KernelMapper.h

@@ -4,6 +4,8 @@
 #include "Utilities/EnumMapper/EnumMapperImp.h"
 #include "Kernel//Utilities/KernelType.h"
 
+#include "VirtualFluids_GPU_export.h"
+
 #include <memory>
 #include <string>