Velocity fomulation without viscosity correction and no output for pressure and wrong output for velocity

Classical rescaling of phase field distribution to 1/3 rho as common in Lee-literature. The source terms were removed from the moments and returned to the distributions based on the original code of Safari.

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

fix the issue in FullVectorConnector derived classes: add initialization function of base class in derived classes

MultiphaseVelocityBCAlgorithm::applyBC(): vleocity in phase field taken from getBoundaryVelocityX1(). There is still something wrong as the actual velocity in the simulation is much higher than set in the input file!

Bug fix in density correct terms. Multiphase velocity BC has been simplified for this early stage of the development.

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

As the cuda warnings are different on each platform and super badly documented, we switch to suppress all warnings for the GridGenerator.

Implements surface tension following Hesam's code. Also corrects uninitialized variables in MultiphaseCumulantLBMKernel::findNeighbors . This might have influence on the contact angle. Initialization is now set to zero!

Implements pressure and stress correction for multiphase model with density contrast. Pressure is regularized and hence different from the form used by Safari and Fakahri. Surface tension is not implemented.