hdf5

Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop)

* commit '2618dc314b9e4875e6ece7ee8696846ac2d02183':
  Remove extra unneeded
  Remove libsettings from pregenerated block
  CMake changes for SKIPPED and flush tests
  Correct $withval usage in configure
  HDFFV-10332 Adjust checks and generation of files
  HDFFV-10332 Use pre-generated files