Merge branch 'vdg-cm3'

NonLinearSolver/BoundaryConditions/nonLinearMicroBC.cpp

NonLinearSolver/BoundaryConditions/nonLinearMicroBC.h

NonLinearSolver/periodicBC/directionalConstraintElement.cpp

NonLinearSolver/periodicBC/pbcConstraintElement.cpp

NonLinearSolver/periodicBC/pbcCreateConstraints.cpp

NonLinearSolver/periodicBC/pbcCreateConstraints.h

NonLinearSolver/periodicBC/pbcSupplementConstraint.cpp

NonLinearSolver/periodicBC/pbcSupplementConstraint.h

dG3D/benchmarks/interpolationPBC_2DShifted/idealHole.py

...iscaleCohesiveTest2D_fullDG_changeBCAfterFailure/model.py

...hmarks/multiscaleCohesiveTest2D_fullDG_shiftedBC/model.py

dG3D/src/dG3DMultiscaleMaterialLaw.cpp