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

changed the naming of the missing Classes (Strategies) and added the chimera kernel from the open source code

simplified the kernel factory infrastructure by omit the enum (Kerneltype) -> adding new kernels to the factory should be straightforward now

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

Remove debugging ls. Activate double accuracy for the numerical tests. Deactivate 256 & 512 grid sizes.

Add gpu options to root cmake. Add the cmake option for passing the path to the numerial tests. Add git clone test to the CI.

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

no changes in configFiles for numerical tests necessary

numerical Tests of K15 and viscosity 10^-2 passes 42 of 60 tests, for the lower viscosities it has to pass 60 of 60 tests
computation time for every viscosity is ~35h on one Geforce 1080ti