Merge branch 'feature/ptscotch' into 'develop'

CMakeLists.txt

cmake/FindPTScotch.cmake

src/language/modules/CoreModule.cpp

src/language/modules/MeshModule.cpp

src/mesh/Connectivity.hpp

src/utils/CMakeLists.txt

src/utils/PTScotchPartitioner.cpp

src/utils/PTScotchPartitioner.hpp

src/utils/ParMETISPartitioner.cpp

src/utils/ParMETISPartitioner.hpp

src/utils/Partitioner.cpp

src/utils/Partitioner.hpp

src/utils/PartitionerOptions.cpp

src/utils/PartitionerOptions.hpp

src/utils/checkpointing/Checkpoint.cpp

src/utils/checkpointing/PartitionerOptionsHFType.hpp

src/utils/checkpointing/Resume.cpp

src/utils/pugs_config.hpp.in