Changed typedefs to using.

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.

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

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

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