Update cmake to dev version.

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

Therefore the muparser cmakeLists.txt was used, but a modified:
 - name is corresponding to the original file: muparser (in lowercases)
 - removed the install
 - adds public include directory : CMAKE_CURRENT_SOURCE_DIR/include.  --> also adapt the include from the dependent fles.
 - adds link to OpemMP

CXX 11 is now required. (CMake throws an error if cpp11 is not available).

Make the cmake project more flexible while removing the CMAKE_SOURCE_DIR usage.

Changed the setting the compiler options to the new cmake function: target_compile_options

 - delete DemCalculator
 - thermoplast setup with real geometry

-add directions into SpongeLayerBlockVisitor
-add mq selection

-add setup for calculation of permeability of anisotropic porous trailing edge (Shina Maini)
-add setup for grid interface test
-in Interactor3D the ghost layer is used for finding of solid blocks

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

TransBlock to BCBlock
TransNode to BCNode

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

new mpi benchmark

support for iterative pressure initialisation

add aperm test case
add LineTimeSeriesCoProcessor

key is string now