Fixed issue in ``__slots__`` usage of derived Containers.
Implemented ``StoreConfig`` and ``StoreConfigMap`` classes, and updated all ``Store`` and ``Bus`` interfaces to use them.
Implemented tracking of Store file modification times, and implemented raising exceptions for any unexpected file modifications.
Improved handling of reading XLSX files with trailing all-empty rows resulting from style formatting across empty data.
Improved HDF5 reading so as to reduce memory overhead.