Proposal: Naming of our libraries

Currently, the names of our libraries are a bit inconsistent. Martin works on the library VirtualFluids_GPU, whereby the name of Konstantins "main" library is VirtualFluidsCore. My proposal is: As the whole project is named VirtualFluids, I would suggest renaming VirtualFluids_GPU to just "gpu" and VirtualFluidsCore to "cpu". Discussion and opinions are welcome :). @m.schoenherr @k.kutscher