[CPU] Clean CPU core

Based on the group discussion we cleaned up the cpu core library. This contains the renaming and deletion of the BoundaryConditions and Kernels as well as the deletion of unsued/old interpolation and applications.

https://git.rz.tu-bs.de/irmb/VirtualFluids_dev/-/issues/136

apps/cpu/AcousticPulse/ap.cpp

@@ -160,8 +160,8 @@ void run()
       }
 
       double bulckViscosity = 10.0*nuLB;
-      SPtr<LBMKernel> kernel = SPtr<LBMKernel>(new CompressibleCumulant4thOrderViscosityLBMKernel());
-      //dynamicPointerCast<CompressibleCumulant4thOrderViscosityLBMKernel>(kernel)->setBulkViscosity(bulckViscosity);
+      SPtr<LBMKernel> kernel = SPtr<LBMKernel>(new K17CompressibleNavierStokes());
+      //dynamicPointerCast<K17CompressibleNavierStokes>(kernel)->setBulkViscosity(bulckViscosity);
       //SPtr<LBMKernel> kernel = SPtr<LBMKernel>(new K15CompressibleNavierStokes());
       //dynamicPointerCast<K15CompressibleNavierStokes>(kernel)->setBulkOmegaToOmega(true);
       //