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

Update cmake to dev version.

Make use of the new cmake command: target_link_options, target_compile_options and target_compile_definitions.

Exclude the cmake .in.h file from the cmake target.

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.

Remove the old write/read functions.

Remove unused stuff and the global include from VirtualFluidsDefinition.h. Adds missing export includes.

Renmade HOST in GridGenerator to CUDA_HOST because of a name conflict to MPI

Changed the setting the compiler options to the new cmake function: target_compile_options