* Resolved the segmentation fault issue when loading a checkpoint with HDF5 data recording enabled.
Resolved the segmentation fault issue when loading a checkpoint with HDF5 data recording enabled.
* Fixed bitfield for hdf5
Fixed bitfield for hdf5 recording.
* Added new function calls to data_record_utilities for getting the total number of data recording groups and the data recording group pointer by its id number per customer request.
* Deleted unnecessary variable.
* Added a couple of more unit tests and fixed the return number to 0 instead of NULL for getting total number of drgs.