h5_write.c - stores INT array as INT32 little endian dataset in the HDF5 file.
h5_read.c - gets info about the dataset;
reads hyperslab from the dataset in the file into
2-dim slice of the 3 dimensional array.
h5_compund.c - creates compound dataset and writes it to the file;
reads subsets of the dataset.
h5_extend_write.c - writes extendable dataset.
h5_extend_read.c - gets info about the dataset;
reads dataset and one of the chunks.
