Add checkpoint/resume for IBoundaryDescriptor

src/language/modules/MeshModule.cpp

src/mesh/NamedBoundaryDescriptor.hpp

src/mesh/NumberedBoundaryDescriptor.hpp

src/utils/checkpointing/CheckpointUtils.cpp

src/utils/checkpointing/CheckpointUtils.hpp

src/utils/checkpointing/IBoundaryDescriptorHFType.hpp

src/utils/checkpointing/ResumeUtils.cpp

src/utils/checkpointing/ResumeUtils.hpp