Load a NeuroVecSeq stored in HDF5 format. Each scan is stored under `/scans/<name>/data` and will be returned as an `H5NeuroVec`.
Examples
if (FALSE) { # \dontrun{
# Load a sequence of scans from HDF5
seq_obj <- H5NeuroVecSeq("multi_scan.h5")
n_scans(seq_obj)
scan_names(seq_obj)
close(seq_obj)
} # }