due to the changes in the kernel factory the includes and calls in the numerical test framework are also changed

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

Rework loadMachineFile function with usage of the cmake-function site_name(): https://cmake.org/cmake/help/latest/command/site_name.html

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