Add parallel checker support for SubItem{Array,Value}PerItem

src/dev/CMakeLists.txt

src/dev/ParallelChecker.cpp

src/dev/ParallelChecker.hpp

src/dev/ParallelCheckerDiscreteFunctionVariant.cpp

src/dev/ParallelCheckerItemArrayVariant.cpp

src/dev/ParallelCheckerItemValueVariant.cpp

src/dev/ParallelCheckerSubItemArrayPerItemVariant.cpp

src/dev/ParallelCheckerSubItemValuePerItemVariant.cpp

src/language/modules/DevUtilsModule.cpp

src/mesh/SubItemArrayPerItem.hpp

src/mesh/SubItemArrayPerItemVariant.hpp

src/mesh/SubItemValuePerItem.hpp

src/mesh/SubItemValuePerItemVariant.hpp

src/utils/PugsUtils.cpp