h4h5tools

Add two files.
1) sds_dim_attr_ds.hdf:  A file that contains dimension attributes.
2) sds_mix_dim_ds.hdf: A file that contains dimensions for the following cases:
   1) Has dimension name and dimension scale,
   2) Has dimension name and no dimension scale
   3) Doesn't provide the dimension name for a dimension at all.
-This line, and those below, will be ignored--

AM   sds_dim_attr_ds.hdf
AM   sds_mix_dim_ds.hdf