hdf5_ep

Merge pull request #251 in HDFFV/hdf5 from ~BYRN/hdf5_adb:develop to develop

* commit '110073450f84fb373a6f28579cdc5751c3eca3b0':
  Add unused -parameters to developer group.
  Add addition hint info about option
  Correct variable name
  Missing file remove added to test
  Update developer flags to account for gcc version
  Move Windows level 4 warnings to developer option
  Fix test output file name
  Changed severity of message state
  Remove duplicate command
  CMake command cleanup
  HDFFV-10094: upgrade cmake command conventions Also converted tests to use macros
  Update cmake min version and cmake command convention