Update + Add more materials

dune/microstructure/EffectiveQuantitiesComputer.hh

dune/microstructure/prestrainedMaterial.hh

inputs/cellsolver.parset

materials/__pycache__/material_neukamm.cpython-38.pyc

materials/__pycache__/material_test.cpython-38.pyc

materials/__pycache__/two_phase_material_1.cpython-38.pyc

materials/__pycache__/two_phase_material_2.cpython-38.pyc

materials/homogeneous.py

materials/material_neukamm.py

materials/material_neukamm_old.py

materials/material_orthotropic.py

materials/material_test.py

materials/two_phase_material_1.py

materials/two_phase_material_2.py

materials/two_phase_material_3.py

src/Cell-Problem.cc

...ated_code/31-8-22_prestrainedMaterials/material_backup.py