As all warnings from VirtualFluidsCPU might be removed, we added a new CI job wich only builds VirtualFluidsCPU and treats all warnings as errors.

Add gcov cmake and a python bindings cmake option (default off). Add the compiler flags also to the test targets.

Changed AppleClang no warning flag from no-reorder-ctor to no-reorder. Disable unroll-all-loops for GNU when IWYU is enabled. Fixed Cycle in include-mapping.

Add msvc warning level W4 and removed most of the warnings. Some of the warnings are suppressed (see MSVC.cmake)

Fix exclude in cmake target files.

Update cmake to dev version.

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

Few refactorings in cmake. Remove the old openmp flag. Put the intel and gcc libraries in the compiler file.

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

Removed unused machine config files.
Removed CAB_COMPILER variable. compiler flag files is now loaded regarding the CMAKE_CXX_COMPILER_ID variable:
	https://cmake.org/cmake/help/latest/variable/CMAKE_LANG_COMPILER_ID.html
Removed the 64 bit support.

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

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