Merge branch 'SeparateTimeDependentDirichletAndSubdomainDeactivation' into 'master'

BaseLib/TimeInterval.cpp

BaseLib/TimeInterval.h

ProcessLib/BoundaryCondition/CreateBoundaryCondition.cpp

...on/CreateDirichletBoundaryConditionWithinTimeInterval.cpp

...tion/CreateDirichletBoundaryConditionWithinTimeInterval.h

...ssLib/BoundaryCondition/DeactivatedSubdomainDirichlet.cpp

ProcessLib/BoundaryCondition/DeactivatedSubdomainDirichlet.h

...ondition/DirichletBoundaryConditionWithinTimeInterval.cpp

...yCondition/DirichletBoundaryConditionWithinTimeInterval.h

ProcessLib/DeactivatedSubdomain.cpp

ProcessLib/DeactivatedSubdomain.h

ProcessLib/ProcessVariable.cpp

ProcessLib/ProcessVariable.h