hdf5

[svn-r24467] tfilters.h5 was created and checked in on 21 Feb 05, rev 10060, and never regenerated. The code for scaleoffset continued to change and the number of params for scaleoffset changed from 7 to 20 on the checkin of 23 Mar 05, rev 10384.
The h5dump tests only looked at headers and never the data. Data reads would fail with invalid number of params (7 expected 20).
Regenerated file and replacement ddls updated.
New h5dump test will be added to read the data.