- renamed the mpi module to parallel
- removed the communicationRoutine interface from gpu. gpu now also uses the communicator interface from parallel
- added missing functionality in parallel/Communicator
- moved ws2_32 library dependency on windows from VirtualFluids_GPU to parallel

rename Calculator+BasicCalculator => Simulation / calculate() to run() / Grid folder to Simulation folder

add test for acoustic pulse with CompressibleCumulant4thOrderViscosityLBMKernel and bulk viscosity equel 10 times shear viscosity

add test acoustic pulse for DLR-F16 simulation environment, add FLOAT64 / double support in WbWriterVtkXmlBinary / WbWriterVtkXmlASCII, bat only for writeOctsWithNodeData

- in header: typedefs for smart pointer usage

- completly switch to std::shared_ptr
- introduce IKernel Interface and CalculatorFactory
- extract Vector3D from UbMath
- introduce WriteObjectsCoProcessor

add acoustic pulse test
add MPIIORestartCoProcessor (n checkpoints to m processes)
add InitDistributionsWithInterpolationGridVisitor
add CompressibleOffsetMomentsInterpolationProcessor (refinement with bulk viscosity)