Konstruktor Stencil
Merge branch 'master' of https://github.com/feelX46/NumSim.git
Merge branch 'master' of https://github.com/feelX46/NumSim.git
Merge branch 'master' of https://github.com/feelX46/NumSim.git
Merge branch 'master' of https://github.com/feelX46/NumSim.git
Merge branch 'master' of https://github.com/feelX46/NumSim.git
New methods for Stencil