Fix various msvc compiler warnings. With msvc the compiler flags are explicit passed to nvcc with -Xcompiler.

As thrust is used in the gpu code, CUDA c++14 is required. Besides fixed compiler warnings in Parameter.cpp.

Remove some compiler warnings and added some cuda warning suppressions for the GridGenerator, as they are cluttering the build output.

Add the option for call linkBoost() without components. In that case cmake will just add the boost header dependency.

According to the cuda documenation (https://docs.nvidia.com/cuda/cuda-math-api/group__CUDA__MATH__DOUBLE.html#group__CUDA__MATH__DOUBLE_1g6d36757715384dc18e0483aa1f04f6c7)
pow() gets two double arguments. With the newest VisualStudio Version 16.8 these arguments needs to be passed as double explicitly.

Change in cmake: When BUILDTYPE is not defined in vf_add_library(), a library is build regarding the CMAKE_BUILDY_TYPE.

Exchange DEPENDS (which links everything private) variable with PUBLIC_LINK and PRIVATE_LINK. Therefore VirtualFluidsCPU is linking everything public know. Everything else is still linking private.

Remove VirtualFluidsDefinitions.h header file.
Remove redundant compiler definitions from gpu.cmake.

Move VirtualFluids header to src.
Add CI file and add files, only existing in the open source version.

Add public target include directories to the cmake targets. Therefore the IncludeList.cmake files are not necessary anymore.
ADapt the export macros in the gks libraries.
Add 3rd/vtk helper cmake macro.
Gorup muparser into 3rd subfolder in visual studio project.